Merge remote-tracking branch 'origin/main' into feat/issue-126-default-source

# Conflicts:
#	src/data/config.ts

.claude/settings.json

@@ -1,24 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "Read",
-      "Edit",
-      "Write",
-      "Glob",
-      "Grep",
-      "Bash(*)",
-      "WebFetch(*)",
-      "WebSearch(*)",
-      "Agent(*)",
-      "mcp__Claude_Preview__*",
-      "mcp__Claude_in_Chrome__*",
-      "mcp__scheduled-tasks__*"
-    ],
-    "deny": [
-      "Bash(git push * main)",
-      "Bash(git push * master)",
-      "Bash(git push --force *)",
-      "Bash(rm -rf /)"
-    ]
-  }
-}

.claude/settings.local.json

@@ -1,26 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "Read",
-      "Edit",
-      "Write",
-      "Glob",
-      "Grep",
-      "Bash(*)",
-      "WebFetch(*)",
-      "WebSearch(*)",
-      "Agent(*)",
-      "mcp__Claude_Preview__*",
-      "mcp__Claude_in_Chrome__*",
-      "mcp__scheduled-tasks__*",
-      "Bash(npx vitest:*)",
-      "Bash(cp \"C:\\\\Users\\\\saopig1\\\\.claude\\\\projects\\\\C--Users-saopig1-Music-teamspeak-music-bot\\\\b5a64d6f-051e-4b87-966c-ece97d2b879b\\\\tool-results\\\\webfetch-1776569008470-exv7qe.bin\" /tmp/design.gz)",
-      "Bash(gunzip -f /tmp/design.gz)",
-      "Read(//tmp/**)"
-    ],
-    "deny": [
-      "Bash(git push --force *)",
-      "Bash(rm -rf /)"
-    ]
-  }
-}

.gitignore

@@ -7,5 +7,7 @@ config.json
 cookies/
 .superpowers/
 .worktrees/
+.claude/
+setup.log
 /bin/
 scripts/navbar_bigger.png

README.md

@@ -5,7 +5,7 @@
 <h1 align="center">TSMusicBot</h1>
 
 <p align="center">
-  <strong>TeamSpeak 音乐机器人</strong> — 网易云音乐 + QQ 音乐 + 酷狗音乐 + 哔哩哔哩 + YouTube（可选），YesPlayMusic 风格 WebUI 控制面板
+  <strong>TeamSpeak 音乐机器人</strong> — 网易云音乐 + QQ 音乐 + 酷狗音乐 + 哔哩哔哩 + YouTube（可选），Jellyfin / Spotify 可选启用，YesPlayMusic 风格 WebUI 控制面板
 </p>
 
 <p align="center">
@@ -17,12 +17,15 @@
   <img src="https://img.shields.io/badge/Docker-支持-2496ED?logo=docker&logoColor=white" />
   <img src="https://img.shields.io/badge/酷狗音乐-支持-2ca2f9" />
   <img src="https://img.shields.io/badge/BiliBili-支持-00a1d6?logo=bilibili&logoColor=white" />
+  <img src="https://img.shields.io/badge/Jellyfin-可选-aa5cc3?logo=jellyfin&logoColor=white" />
   <img src="https://img.shields.io/badge/YouTube-可选-FF0000?logo=youtube&logoColor=white" />
   <img src="https://img.shields.io/badge/Spotify-可选-1DB954?logo=spotify&logoColor=white" />
   <img src="https://img.shields.io/badge/TS3-支持-2580C3?logo=teamspeak&logoColor=white" />
   <img src="https://img.shields.io/badge/TS6-支持-2580C3?logo=teamspeak&logoColor=white" />
 </p>
 
+> v1.10.0 新增**可选**的 [Jellyfin](https://jellyfin.org/) 音源（由 [@ItsEricRao](https://github.com/ItsEricRao) 在 [PR #123](https://github.com/ZHANGTIANYAO1/teamspeak-music-bot/pull/123) 中贡献）：连接自建 Jellyfin 服务器直接播放你自己的音乐库。默认关闭，在 **设置 → Jellyfin 音乐库** 一键开启；原有在线音源保持默认启用，行为不变。
+
 ## 功能特性
 
 - **WebUI 鉴权与细粒度权限（必选）** — 用户名 + 密码登录，多用户、两种角色（管理员 / 成员）；成员可进一步配置**细粒度能力**（播放控制 / 队列管理 / 机器人管理 / 平台登录 / 音质）和**按机器人授权白名单**，所有变更操作由后端逐请求强制校验。bcrypt 加密、HttpOnly 会话 Cookie，CSRF 防护，WebSocket 同样鉴权。首次访问引导创建管理员。从无鉴权旧版本升级时请参阅 [更新升级](#更新升级) 章节
@@ -31,7 +34,8 @@
 - **本地音频上传播放** — 在搜索页拖拽或选择本地音频上传，上传后可直接播放 / 下一首播放 / 加入队列；管理员可在 设置 → 行为设置 开关此功能，播放结束或停止/清空/替换队列时会清理服务端接收的本地文件
 - **专属链接（单机器人锁定）** — 通过 `/bot/<id>` 专属链接打开 WebUI 时锁定到单个机器人，刷新后保持，适合把某台机器人的控制页分享给特定用户
 - **频道无人时自动暂停** — 机器人所在频道没有其他人时自动暂停播放，有人加入后自动恢复（**默认关闭**，可在设置中开启）
-- **多平台音源** — 网易云音乐 + QQ 音乐 + 酷狗音乐 + 哔哩哔哩（默认内置），YouTube 可选启用（通过 yt-dlp），**Spotify（实验性）** 可选启用（需 Premium + 自建开发者应用，默认关闭，详见 [Spotify 音源（实验性）](#spotify-音源实验性)），统一搜索（歌曲 / 歌单 / 专辑均支持翻页「加载更多」），结果标注来源
+- **Jellyfin 音源（可选）** — 连接自建 [Jellyfin](https://jellyfin.org/) 服务器作为额外音源：搜索（歌曲 / 专辑 / 歌单）、懒解析直传播放、同步歌词、收藏 Instant Mix 电台（`!fm -j`）、首页「最近添加 / 播放最多 / 收藏 / 流派」，并把播放进度回报给 Jellyfin（PlayCount / 播放状态）。**默认关闭**，在 设置 → Jellyfin 音乐库 一键开启。详见 [可选：Jellyfin 音源](#可选jellyfin-音源)
+- **多平台音源（enabledProviders 门控）** — 网易云音乐 / QQ 音乐 / 酷狗音乐 / 哔哩哔哩 / YouTube（yt-dlp，需安装）**默认启用**，可在 `config.json` 的 `enabledProviders` 中逐个停用；Jellyfin 为可选音源（见上），**Spotify（实验性）** 由独立开关控制（需 Premium + 自建开发者应用，默认关闭，详见 [Spotify 音源（实验性）](#spotify-音源实验性)）。统一搜索（歌曲 / 歌单 / 专辑均支持翻页「加载更多」），结果标注来源，禁用音源不出现在搜索栏
 - **真实客户端协议 (TS3/TS6 双协议)** — 机器人在 TeamSpeak 中可见（非 ServerQuery 隐身模式），自动检测并适配 TS3 和 TS6 服务器，支持 TS6 HTTP Query API
 - **YesPlayMusic 风格 WebUI** — 精美界面，支持深色/浅色主题切换
 - **完整播放控制** — 播放/暂停/上一首/下一首/进度跳转/音量调节
@@ -163,6 +167,16 @@ sudo ./scripts/install.sh
 >
 > **如何判断是否需要迁移**：如果你是全新安装，或者你的机器人数据库中 `identity` 字段已经是空的，则**无需任何操作**。完成上述步骤后，按下面对应的系统升级步骤执行即可。
 
+### 关于 enabledProviders 音源开关（v1.10.0 起）
+
+v1.10.0（[PR #123](https://github.com/ZHANGTIANYAO1/teamspeak-music-bot/pull/123)）引入 `enabledProviders` 音源开关与可选的 Jellyfin 音源。当前默认值为 `["netease", "qq", "bilibili", "youtube", "kugou"]`——**与旧版行为一致**，从更早版本升级**无需任何操作**，在线音源照常可用；Jellyfin 需要手动开启（详见 [可选：Jellyfin 音源](#可选jellyfin-音源)）。
+
+> ⚠️ **仅影响短暂运行过 v1.10.0 初版的用户**：该版本曾把默认音源设为 Jellyfin-only。如果你在那段时间保存过设置，`data/config.json` 中可能被写入了 `"enabledProviders": ["jellyfin"]`，升级后在线音源会保持停用。修复方法：把在线音源加回列表（或直接删除该字段以使用默认值），重启机器人（网易云 / QQ 的内嵌 API 服务需要重启才会启动）：
+>
+> ```json
+> "enabledProviders": ["netease", "qq", "bilibili", "youtube", "kugou", "jellyfin"]
+> ```
+
 ### 从 WebUI 无鉴权版本升级（重要）
 
 本次更新引入了**强制 WebUI 鉴权**。从无鉴权旧版本升级后，**WebUI 必须先创建管理员账号才能使用**。所有 `/api/*` 端点（除少量公共白名单）和 `/ws` 现在都需要登录。
@@ -303,14 +317,15 @@ sudo systemctl start tsmusicbot
    - 机器人昵称
    - 可选：服务器密码、默认频道
 3. 在 **设置 → 音乐账号** 扫码登录网易云 / QQ 音乐 / 酷狗音乐 / B 站账号（可选，登录后可播放 VIP 歌曲、获取每日推荐 / 我的歌单等）
-4. 在 **设置 → 用户管理**（仅管理员可见）按需添加成员。成员默认可控制播放但无法管理其他用户；管理员还可为每个成员单独配置**能力**（播放控制 / 队列 / 机器人管理 / 平台登录 / 音质）和**可操作的机器人白名单**，未授权的机器人对该成员不可见、不可控
+4. （可选）在 **设置 → Jellyfin 音乐库** 连接自建 Jellyfin 服务器并打开「启用 Jellyfin 音源」（安装向导第 3 步保存连接时会自动启用；详见 [可选：Jellyfin 音源](#可选jellyfin-音源)）
+5. 在 **设置 → 用户管理**（仅管理员可见）按需添加成员。成员默认可控制播放但无法管理其他用户；管理员还可为每个成员单独配置**能力**（播放控制 / 队列 / 机器人管理 / 平台登录 / 音质）和**可操作的机器人白名单**，未授权的机器人对该成员不可见、不可控
 
 ### WebUI 页面说明
 
 | 页面 | 功能 |
 |------|------|
-| **首页** | 推荐歌单、每日推荐、私人FM（网易云 / QQ 雷达 / 酷狗电台）、我的歌单、收藏的歌单（各源带标签切换） |
+| **首页** | 推荐歌单、每日推荐、私人FM（网易云 / QQ 雷达 / 酷狗电台）、我的歌单、收藏的歌单（各源带标签切换）；启用 Jellyfin 后另有「Jellyfin 电台 / 最近添加 / 播放最多 / 收藏 / 流派」区块 |
-| **搜索** | 四平台统一搜索，结果标注网易云/QQ/酷狗/B站来源，可一键收藏歌单 |
+| **搜索** | 跨音源统一搜索（仅显示已启用的音源；启用 Jellyfin 后其结果排最前），结果标注来源，可一键收藏歌单 |
 | **歌单** | 查看歌单详情，播放全部（根据当前播放模式选择首歌），一键收藏 |
 | **歌词** | 全屏歌词页，实时同步滚动，模糊专辑封面背景 |
 | **历史** | 播放历史记录 |
@@ -322,14 +337,16 @@ sudo systemctl start tsmusicbot
 
 | 命令 | 说明 |
 |------|------|
-| `!play <歌名>` | 搜索并播放（取最热门的匹配项） |
+| `!play <歌名>` | 搜索并播放（取最热门的匹配项；默认音源为网易云） |
+| `!play -n <歌名>` | 显式从网易云音乐搜索（默认音源即网易云，通常可省略） |
+| `!play -j <歌名>` | 从 Jellyfin 搜索（需先启用 Jellyfin 音源） |
 | `!play -q <歌名>` | 从 QQ 音乐搜索 |
 | `!play -k <歌名>` | 从酷狗音乐搜索 |
 | `!play -b <关键词>` | 从哔哩哔哩搜索视频并播放音频 |
 | `!play -y <关键词>` | 从 YouTube 搜索并播放（需要安装 [yt-dlp](#可选youtube-音源)）|
-| `!search <歌名> [-q\|-k\|-b\|-y]` | 列出前若干个匹配结果（含序号与 id），用于挑选同名歌曲；可加平台标志切换音源 |
+| `!search <歌名> [-j\|-n\|-q\|-k\|-b\|-y]` | 列出前若干个匹配结果（含序号与 id），用于挑选同名歌曲；可加平台标志切换音源 |
 | `!play #<序号>` | 播放上一次 `!search` 结果中的第 N 项（区分同名歌曲） |
-| `!play id:<id>` | 按歌曲 id 播放精确的某首歌（也支持直接粘贴网易云 / QQ / B站 歌曲链接） |
+| `!play id:<id>` | 按歌曲 id 播放精确的某首歌（也支持直接粘贴网易云 / QQ / B站 歌曲链接；Jellyfin 曲目用 GUID ItemId） |
 | `!add <歌名>` | 添加到播放队列（同样支持 `#序号` / `id:<id>` / 链接） |
 | `!pause` / `!resume` | 暂停 / 恢复播放 |
 | `!next` / `!prev` | 下一首 / 上一首 |
@@ -338,11 +355,12 @@ sudo systemctl start tsmusicbot
 | `!queue` | 查看播放队列 |
 | `!remove <位置>` | 从队列中删除指定位置的歌曲（位置从 1 开始，见 `!queue`） |
 | `!mode <seq\|loop\|random\|rloop>` | 切换播放模式 |
-| `!playlist <歌单名或ID>` | 加载歌单（支持名称模糊搜索和 ID） |
+| `!playlist <歌单名或ID>` | 加载歌单（支持名称模糊搜索和 ID；Jellyfin 歌单 GUID 也可直接粘贴） |
 | `!playlist -q <歌单名>` | 从 QQ 音乐搜索并加载歌单 |
-| `!album <ID>` | 加载专辑 |
+| `!album <专辑名或ID>` | 加载专辑（支持名称搜索 / 数字 ID / Jellyfin GUID） |
-| `!artist <歌手名>` | 按歌手循环播放（支持 `-q`/`-k`/`-b`/`-y`） |
+| `!artist <歌手名>` | 按歌手循环播放（支持 `-j`/`-n`/`-q`/`-k`/`-b`/`-y`） |
-| `!fm` | 私人 FM（网易云，自动续播） |
+| `!fm` | 私人 FM（默认网易云，自动续播） |
+| `!fm -j` | Jellyfin 电台：从收藏出发的 Instant Mix（需启用 Jellyfin，自动续播） |
 | `!fm -q` | QQ 音乐雷达 / 猜你喜欢 FM（自动续播） |
 | `!fm -k` | 酷狗私人电台 / 个性化推荐 FM（自动续播） |
 | `!lyrics` | 显示当前完整歌词（自动分多条消息发送，不再只显示开头几行） |
@@ -376,6 +394,8 @@ sudo systemctl start tsmusicbot
 
 ### 音质等级
 
+**在线音源（网易云等）**
+
 | 等级 | 码率 | 格式 | 说明 |
 |------|------|------|------|
 | 标准 | 128kbps | MP3 | 免费可用 |
@@ -385,8 +405,29 @@ sudo systemctl start tsmusicbot
 | Hi-Res | ~1500kbps | FLAC | 需要 VIP |
 | 超清母带 | ~4000kbps | FLAC | 需要黑胶 VIP |
 
+**Jellyfin（启用后）**
+
+| 等级 | 说明 |
+|------|------|
+| **原始直传（direct）** | **默认**：原始文件不转码直传（机器人本地统一转 Opus，此档即最高音质） |
+| 320kbps / 192kbps / 128kbps | 由 Jellyfin 服务器转码后传输，适合公网带宽有限的自建服务器 |
+
 在设置页面选择音质，立即生效（影响后续播放的歌曲）。
 
+> **重启后保留（#125）**：音质选择会持久化到 `data/config.json`（每个平台各自记录），重启机器人后自动恢复，无需每次手动重设。
+
+### 重启后保留的播放设置
+
+以下运行时设置在改动时自动落盘，重启机器人后自动恢复，不再回到默认值：
+
+| 设置 | 作用范围 | 存储位置 |
+|------|----------|----------|
+| **播放音量**（`!vol` / WebUI 音量条 / REST `/volume`） | 每个机器人独立 | 数据库 `bot_instances.volume` |
+| **播放模式**（`!mode` / WebUI / REST `/mode`：顺序 / 列表循环 / 随机 / 随机循环） | 每个机器人独立 | 数据库 `bot_instances.play_mode` |
+| **音质**（各平台，WebUI 设置页 / REST `/quality`） | 全局（各平台各自记录） | `data/config.json` 的 `audioQuality` |
+
+聊天命令、WebUI、REST API 三种入口的改动都会被持久化。播放队列、当前歌曲、进度、`!fm` / `!artist` 等临时播放状态仍为一次性状态，重启后不保留（`!fm` / `!artist` 内部临时切换的随机 / 循环也**不会**覆盖你用 `!mode` 显式保存的偏好）。
+
 ## 项目架构
 
 ```
@@ -408,6 +449,7 @@ teamspeak-music-bot/
 │   │   └── database.ts         # SQLite 数据库（播放历史、实例、收藏、权限持久化）
 │   ├── music/                  # 音源服务
 │   │   ├── provider.ts         # 统一 MusicProvider 接口
+│   │   ├── jellyfin.ts         # Jellyfin 适配器（可选音源，直连 REST API）
 │   │   ├── netease.ts          # 网易云音乐适配器
 │   │   ├── qq.ts               # QQ 音乐适配器
 │   │   ├── bilibili.ts         # 哔哩哔哩适配器（视频音频提取）
@@ -461,6 +503,7 @@ teamspeak-music-bot/
 | **数据库** | better-sqlite3 (SQLite) |
 | **音频处理** | FFmpeg (ffmpeg-static 内置), @discordjs/opus |
 | **TS 协议** | @honeybbq/teamspeak-client（完整客户端协议）+ 自研 TS6 协议适配层 |
+| **Jellyfin** | Jellyfin REST API（可选音源，直连，无额外 npm 依赖） |
 | **网易云 API** | NeteaseCloudMusicApi |
 | **QQ 音乐 API** | @sansenjian/qq-music-api（锁定 `~2.4.0`，需 Node ≥ 20.17） |
 | **哔哩哔哩** | BiliBili Web API（搜索、DASH 音频流、QR 登录） |
@@ -470,6 +513,64 @@ teamspeak-music-bot/
 | **图标** | @iconify/vue |
 | **日志** | pino |
 
+## 可选：Jellyfin 音源
+
+本项目可将自建 [Jellyfin](https://jellyfin.org/) 媒体服务器作为**额外音源**：机器人直接播放你自己音乐库里的文件，不依赖任何在线平台的可用性 / 版权 / 登录状态。该音源**默认关闭**，需要手动启用。
+
+### 启用与连接配置
+
+三种方式任选：
+
+1. **首次安装向导** — 第 3 步即 Jellyfin 连接卡（可跳过，稍后配置）；填写并「保存并继续」会**自动启用**该音源。
+2. **WebUI** — 设置 → Jellyfin 音乐库（可选）：打开「**启用 Jellyfin 音源**」开关，填写服务器地址、选择认证方式、「测试连接」验证后保存，**保存即时生效，无需重启**。
+3. **config.json** — 手动编辑 `jellyfin` 配置块，并把 `"jellyfin"` 加入 `enabledProviders`，然后重启。
+
+两种认证方式：
+
+| 模式 | 填写内容 | 说明 |
+|------|---------|------|
+| **账号密码**（默认） | `username` + `password` | 以该用户身份登录（`AuthenticateByName`），token 自动持久化、失效自动重登 |
+| **API Key** | `apiKey` + `userId` | 使用管理后台生成的 API Key；`userId` 决定使用谁的音乐库 / 收藏 / 歌单 |
+
+```jsonc
+// config.json 片段
+{
+  "jellyfin": {
+    "serverUrl": "https://jellyfin.example.com",
+    "authMode": "userpass",     // 或 "apikey"
+    "username": "music",
+    "password": "······",
+    "apiKey": "",               // apikey 模式填写
+    "userId": ""                // apikey 模式填写
+  },
+  "enabledProviders": ["netease", "qq", "bilibili", "youtube", "kugou", "jellyfin"]
+}
+```
+
+> 密码 / API Key 在 WebUI 中**只写不回显**；表单留空表示保持已保存的值不变。
+
+### 功能
+
+- **搜索** — 歌曲 / 专辑 / 歌单，支持翻页「加载更多」；WebUI 统一搜索中 Jellyfin 结果排最前
+- **播放** — 懒解析播放地址；默认**原始直传**（不经 Jellyfin 转码），也可选 320/192/128kbps 服务器转码档（设置 → 音质设置）
+- **歌词** — 读取 Jellyfin 的歌词接口（内嵌或 .lrc），时间轴同步滚动，`!lyrics` 可用
+- **电台 / FM**（`!fm -j` 或首页「Jellyfin 电台」卡片）— 随机取一首**收藏**做种子生成 Instant Mix 歌曲流；没有收藏则回退到最近播放、再回退随机曲目
+- **首页区块** — 最近添加（专辑）/ 播放最多 / Jellyfin 收藏 / 我的歌单 / 流派（点流派芯片即播放该流派）
+- **播放上报** — 播放开始 / 进度（约 10s 一次）/ 停止会回报给 Jellyfin（`Sessions/Playing` 系列接口），你的 Jellyfin 播放统计（PlayCount、最近播放）保持准确；上报失败不影响播放
+- **聊天命令** — 启用后用 `-j` 标志：`!play -j <歌名>`、`!fm -j`、`!artist -j <歌手>`；`!playlist` / `!album` / `!play id:` 可直接粘贴 Jellyfin GUID。若把在线音源全部停用、只保留 Jellyfin，不带标志的命令会自动以 Jellyfin 为默认音源
+
+### enabledProviders：音源开关
+
+`config.json` 的 `enabledProviders` 数组决定哪些音源可用（默认 `["netease", "qq", "bilibili", "youtube", "kugou"]`，即在线音源全开、Jellyfin 关闭）：
+
+- 可选值：`jellyfin`、`netease`、`qq`、`bilibili`、`youtube`、`kugou`（`local` 由 `localAudioEnabled` 控制，`spotify` 由 `spotify.enabled` 控制）
+- 未列出的音源：聊天命令返回「音源未启用」、REST 返回 400、WebUI 搜索栏 / 登录卡 / FM 卡片自动隐藏
+- 不带平台标志的命令默认走**固定优先级中第一个已启用的音源**：网易云 → QQ → 酷狗 → Jellyfin → B站 → YouTube（默认配置下即网易云）
+- **自定义默认音源（`defaultPlatform`）** — 想让不带标志的 `!play 歌名` 直接用某个音源（例如常听哔哩哔哩，免去每次加 `-b`），可在 设置 → 默认音源 里选择，或在 `config.json` 中设置 `"defaultPlatform": "bilibili"`。取值须是 `enabledProviders` 里已启用的音源，否则被忽略（回退到上面的固定优先级）；留空 / `null` / 删除该字段即恢复固定优先级。WebUI 保存后即时生效，无需重启
+- 网易云 / QQ 停用时，其内嵌 API 服务（端口 3001 / 3200）**不会启动**
+- 示例（Jellyfin 为主、只留网易云备用）：`"enabledProviders": ["jellyfin", "netease"]`（默认音源仍为网易云，点歌用 `-j`、停用网易云，或直接把 `defaultPlatform` 设为 `"jellyfin"`）；示例（纯 Jellyfin）：`"enabledProviders": ["jellyfin"]`
+- 注意：重新启用网易云 / QQ 的内嵌 API 服务需要重启机器人；其余音源改动即时生效（WebUI 的 Jellyfin 开关即改此列表）
+
 ## 可选：YouTube 音源
 
 YouTube 是**可选**的音源，默认**未启用**，需要安装 [yt-dlp](https://github.com/yt-dlp/yt-dlp) 才能使用。启用后可通过聊天命令 `!play -y <关键词>` 或 WebUI 的 YouTube 平台选项搜索/播放 YouTube 视频的音频流。
@@ -702,10 +803,13 @@ A：使用 `!move <频道名>` 命令，或在设置页面创建机器人时指
 A：可以。在设置页面创建多个实例，分别连接不同的 TS 服务器或频道。
 
 **Q：端口 3200 被占用？**
-A：QQ 音乐 API 启动时自动监听 3200 端口。如果之前的进程还在运行，程序会自动复用。如需重启可手动结束 `node` 进程。
+A：QQ 音乐 API 启动时会监听 `config.json` 里的 `qqMusicApiPort`（默认 **3200**），客户端也用同一个端口发请求，二者始终一致。如果之前的进程还在运行，程序会自动复用。如需改端口，改 `qqMusicApiPort` 后重启即可；如需重启可手动结束 `node` 进程。
+
+**Q：日志里 `baseURL` 是 3200，但 QQ API 实际监听在 3300？（二维码不弹）**
+A：这是**旧版本**（或过期的 `latest` Docker 镜像）才有的问题：早期实现用的上游包默认端口是 3300，而客户端 `baseURL` 已经是 3200，两边对不上，取二维码时就 `ECONNREFUSED 127.0.0.1:3200`。当前版本已把内嵌 QQ 音乐 API **强制绑定到 `qqMusicApiPort`（默认 3200）**，并在启动前把上游包读取的 `PORT` 环境变量对齐到该端口，二者不可能再错位。修复方法：**拉取最新镜像并重启**（`docker compose pull && docker compose up -d`），或用 `npm ci && npm run build` 更新到最新代码。启动后可在日志里确认那行 `QQ Music API started`，其 `port` 字段就是实际监听端口。
 
 **Q：QQ 音乐二维码不弹 / 扫码登录失败 / cookie 无法使用？**
-A：通常是内置的 QQ 音乐 API 服务没起来——它一旦没监听 3200 端口，机器人去取二维码就会拿到 `ECONNREFUSED 127.0.0.1:3200`，于是二维码不显示，登录和 cookie 也全失效。先看日志里 QQ API 的启动报错：
+A：通常是内置的 QQ 音乐 API 服务没起来——它一旦没监听 `qqMusicApiPort`（默认 3200）端口，机器人去取二维码就会拿到 `ECONNREFUSED 127.0.0.1:3200`，于是二维码不显示，登录和 cookie 也全失效。先看日志里 QQ API 的启动报错：
 - 报 `ERR_REQUIRE_ESM`：装到了不兼容的 `@sansenjian/qq-music-api` 版本。本项目把它锁在 **`~2.4.0`**（需要 **Node ≥ 20.17 / 22.9**）；务必用 `npm ci` 或 `npm install` 让版本与锁文件一致，**不要**手动 `npm update` 把它升级或降级到不兼容的中间版本（2.3.0/2.3.1 是纯 ESM、会触发此错）。
 - 报 Node 版本不满足：升级 Node 到 ≥ 20.17，或将该依赖降到 `~2.2.10`（无此 Node 要求）后重装。
 修好版本后重新 `npm install && npm run build` 并重启即可。
@@ -765,7 +869,17 @@ A：本项目内置 `/login` 限流（每 IP 每分钟 5 次），但生产部
 
 > 完整历史请查看 [git log](https://github.com/ZHANGTIANYAO1/teamspeak-music-bot/commits/main) 或 [Releases](https://github.com/ZHANGTIANYAO1/teamspeak-music-bot/releases)。这里只列出重要变更和面向用户的破坏性改动。
 
-### 最新版本
+### 最新版本 — Jellyfin 可选音源
+
+**Jellyfin 集成（[PR #123](https://github.com/ZHANGTIANYAO1/teamspeak-music-bot/pull/123)，由 [@ItsEricRao](https://github.com/ItsEricRao) 贡献；随后调整为可选音源）**
+
+- **Jellyfin 音源（可选，默认关闭）**：连接自建 [Jellyfin](https://jellyfin.org/) 服务器作为额外音源——搜索（歌曲 / 专辑 / 歌单，支持翻页）、懒解析直传播放、同步歌词、收藏 Instant Mix 电台（`!fm -j`）、首页「最近添加 / 播放最多 / 收藏 / 流派」区块、播放进度回报（PlayCount / 播放状态）。账号密码或 API Key 两种认证，在 设置 → Jellyfin 音乐库 打开「启用 Jellyfin 音源」即可，保存即时生效。详见 [可选：Jellyfin 音源](#可选jellyfin-音源)。
+- **enabledProviders 音源开关**：`config.json` 新增 `enabledProviders` 字段，默认 `["netease", "qq", "bilibili", "youtube", "kugou"]`——在线音源保持默认启用，**从旧版本升级无行为变化**；列表外的音源在聊天命令 / REST / WebUI 中一律不可用，网易云 / QQ 停用时其内嵌 API 服务（端口 3001 / 3200）不再启动。
+- **新增 `-j`（Jellyfin）与 `-n`（网易云）平台标志**；不带标志的 `!play` / `!search` / `!fm` 等走固定优先级中第一个已启用的音源（默认配置下即网易云，行为与旧版一致）。
+- ⚠️ **v1.10.0 初版曾短暂把默认音源设为 Jellyfin-only，现已回退**。若你在该版本保存过设置导致 `config.json` 中为 `"enabledProviders": ["jellyfin"]`，请手动把在线音源加回（详见 [更新升级](#关于-enabledproviders-音源开关v1100-起)）。
+- **QQ 按 ID 播放空歌名修复**（[PR #124](https://github.com/ZHANGTIANYAO1/teamspeak-music-bot/pull/124)，感谢 [@Slldyd2077](https://github.com/Slldyd2077)）：按 ID 播放 QQ 歌曲时回填歌曲元数据，TS 端不再显示空歌名。
+
+### v1.9.0 及更早
 
 **功能增强：Spotify 音源（实验性）/ 搜索结果翻页 / 细粒度权限 / 本地收藏 / 本地音频上传 / 专属链接 / 自动暂停 / QQ 雷达 FM**
 
@@ -795,6 +909,7 @@ A：本项目内置 `/login` 限流（每 IP 每分钟 5 次），但生产部
 - **会话存储**：服务端 SQLite 表 `sessions`，存储 sha256(token)；浏览器只持有原始 token cookie。7 天 TTL，每小时滚动续期。同账号最多 10 个并发会话（超出剔除最旧）。
 - **登录限流**：每 IP 每分钟 5 次 `/login` + 3 次 `/setup`，命中返回 429 + `Retry-After`。
 - **CSRF & 安全头**：所有 mutating 请求强制 `Origin`/`Referer` 同源；响应携带 `X-Frame-Options: DENY` 和 `Content-Security-Policy: frame-ancestors 'none'`（防点击劫持）。
+- **搜索引擎隐身（防止实例被收录，issue #128）**：为避免部署实例的 WebUI 被搜索引擎收录、被陌生人搜到控制页，采用纵深防御——所有响应携带 `X-Robots-Tag: noindex, nofollow`，`/robots.txt` 返回 `User-agent: * / Disallow: /`，`index.html` 内置 `<meta name="robots" content="noindex, nofollow">`（专属链接 `/bot/<id>` 等所有页面同样覆盖）。这些只阻止「被索引」，不是访问控制——**请不要把自己的 WebUI 链接发到公开网页 / 论坛 / 聊天群**，真正的防护来自登录鉴权与反向代理。
 - **配置变更**：反向代理部署务必 `"trustProxy": true`（详见 [反向代理部署注意事项](#反向代理部署注意事项)）。`config.adminGroups` 现已启用，用于限制管理类聊天命令只能由指定 TeamSpeak 服务器组运行（为空 = 不限制，详见 [TeamSpeak 命令权限](#teamspeak-命令权限管理类命令限制)）；`config.adminPassword` 仍为旧版预留字段，保留以兼容旧 `config.json`，当前未使用。
 
 ### v0.x — Bot Profile 自动更新与协议层升级
@@ -876,6 +991,8 @@ A：本项目内置 `/login` 限流（每 IP 每分钟 5 次），但生产部
 
 | 项目 | 说明 |
 |------|------|
+| [Jellyfin](https://github.com/jellyfin/jellyfin) | 自由软件媒体服务器（本项目的可选自建音源） |
+| [ItsEricRao](https://github.com/ItsEricRao) | Jellyfin 音源集成贡献者（[PR #123](https://github.com/ZHANGTIANYAO1/teamspeak-music-bot/pull/123)） |
 | [yichen11818/NeteaseTSBot](https://github.com/yichen11818/NeteaseTSBot) | TS6 协议兼容参考（vendored tsproto 补丁） |
 | [Splamy/TS3AudioBot](https://github.com/Splamy/TS3AudioBot) | 优秀的 TeamSpeak 音频机器人框架 |
 | [TS3AudioBot-BiliBiliPlugin](https://github.com/xxmod/TS3AudioBot-BiliBiliPlugin) | 提供插件开发参考 |

docs/superpowers/plans/2026-07-06-jellyfin-source.md

@@ -0,0 +1,53 @@
+# Jellyfin 音源（主音源化）实施计划
+
+目标：自建 Jellyfin 服务器成为默认且主要的音源；现有 NetEase / QQ / Bilibili / YouTube / Kugou
+继续编译但默认停用（`enabledProviders` 配置门控，本次不删除）。约束：`src/audio/*`、
+`src/ts-protocol/*` 不改（唯一例外：`queue.ts` 中 `QueuedSong.platform` 联合类型加一个成员，
+纯类型加宽，无任何逻辑改动，否则无法编译）。
+
+## 触点地图
+
+后端：
+- `src/music/provider.ts` — platform 联合类型加 `"jellyfin"`（Song/Playlist/Album/MusicProvider）
+- `src/audio/queue.ts` — 同上（仅类型，一个词）
+- `src/data/database.ts` — PlayHistoryRecord.platform 加 `"jellyfin"`
+- `src/music/auth.ts` — CookieStore 平台加 `"jellyfin"`（token JSON 与 cookie 同路径持久化）
+- `src/data/config.ts` — 新增 `JellyfinConfig`（serverUrl / authMode / username / password /
+  apiKey / userId）+ `enabledProviders`（默认 `["jellyfin"]`）+ 载入清洗 + `isProviderEnabled` /
+  `defaultPlatform` 助手。spotify 仍由 `spotify.enabled` 门控、local 仍由 `localAudioEnabled` 门控
+- `src/music/jellyfin.ts` — 新 Provider：认证（userpass=AuthenticateByName + MediaBrowser 头，
+  401 重登一次；apikey=X-Emby-Token）、搜索（Audio/MusicAlbum/Playlist, StartIndex 翻页）、
+  懒解析播放 URL（direct=`/Audio/{id}/stream?static=true`；320/192/128=`/Audio/{id}/universal`
+  转码）、歌单/专辑/歌词（ticks→秒，404=无歌词）、收藏→InstantMix 电台链（收藏→最近播放→随机曲目）、
+  最近添加/最多播放/流派、播放上报（Sessions/Playing[/Progress|/Stopped]，全部吞错）、
+  音质档（direct 原始直传 / 320k / 192k / 128k）
+- `src/music/api-server.ts` — 按 provider 开关决定是否绑定 3001/3200
+- `src/index.ts` — 构造 JellyfinProvider、加载持久化 token、穿线
+- `src/bot/manager.ts` — 穿线 jellyfinProvider（与 spotifyProvider 同模式）
+- `src/bot/instance.ts` — jellyfin 分支（getProviderFor / getProvider，新 flag `-j`/`-n`）、
+  默认平台=jellyfin、停用音源友好报错、歌单/专辑命令识别 GUID、播放上报挂钩、帮助文本
+- `src/web/api/music.ts` — provider 选择 + 门控、`/providers`、jellyfin 首页数据端点、音质路由
+- `src/web/api/auth.ts` — jellyfin 状态 + 测试连接（/System/Info）；无 QR
+- `src/web/api/player.ts` — 平台白名单 + platformFlag（netease 显式 `-n`）
+- `src/web/api/bot.ts` — settings 读写 jellyfin 配置块（密码/APIKey 写入不回显）+ 热更新 provider
+
+前端（Vue 3，保持 YesPlayMusic 风格；新增文案 zh+en）：
+- `stores/player.ts` — Source 加 jellyfin、enabledProviders 状态、jellyfin 首页数据
+- `views/Search.vue` — 音源条只显示启用的 provider、Jellyfin 徽标
+- `views/Home.vue` — 最近添加 / 播放最多 / 我的歌单 / 收藏 / 流派 区块 + jellyfin FM 卡片
+- `views/Settings.vue` — Jellyfin 连接卡（地址/认证模式/凭据/测试连接）、隐藏停用 provider 的
+  登录卡、jellyfin 音质档
+- `views/Setup.vue` — 向导第 3 步换成 Jellyfin 连接卡
+- `views/Playlist.vue` 等 — ID 均按 string 处理，审计通过（GUID 无数字假设）
+
+文档：README 增加「Jellyfin 音源」章节 + fork 出处与 MIT 归属（上游
+ZHANGTIANYAO1/teamspeak-music-bot）。
+
+## 阶段与验证
+
+1. 类型 + 配置 → `npx tsc --noEmit`
+2. JellyfinProvider + 单测 → tsc + vitest
+3. 门控 + bot 穿线 → tsc + vitest
+4. REST → tsc + vitest
+5. WebUI → `cd web && npm run build`
+6. README + 全量构建/测试

package.json

@@ -47,5 +47,13 @@
     "tsx": "^4.21.0",
     "typescript": "^6.0.2",
     "vitest": "^4.1.2"
+  },
+  "allowScripts": {
+    "@discordjs/opus@0.10.0": true,
+    "better-sqlite3@12.11.1": true,
+    "cpu-features@0.0.10": true,
+    "esbuild@0.28.1": true,
+    "ffmpeg-static@5.3.0": true,
+    "ssh2@1.17.0": true
   }
 }

src/audio/queue.ts

@@ -10,7 +10,7 @@ export interface QueuedSong {
   name: string;
   artist: string;
   album: string;
-  platform: "netease" | "qq" | "bilibili" | "youtube" | "local" | "kugou" | "spotify";
+  platform: "netease" | "qq" | "bilibili" | "youtube" | "local" | "kugou" | "spotify" | "jellyfin";
   url?: string; // resolved lazily at play time
   coverUrl: string;
   duration: number; // seconds

src/bot/instance.test.ts

@@ -6,6 +6,7 @@ import type { SpotifyController } from "../music/spotify/controller.js";
 import type { SpotifyOAuth } from "../music/spotify/spotify-oauth.js";
 import type { MusicProvider } from "../music/provider.js";
 import type { BotDatabase } from "../data/database.js";
+import { createDatabase } from "../data/database.js";
 import type { AvatarStore } from "../data/avatars.js";
 import type { BotConfig } from "../data/config.js";
 
@@ -832,6 +833,9 @@ describe("BotInstance — spotifyOAuth threading to the controller factory (C3.1
     const database = {
       getProfileConfig: () => ({}),
       getCustomAvatarPath: () => null,
+      getPlayerSettings: () => ({ volume: 75, playMode: "seq" }),
+      saveVolume: () => {},
+      savePlayMode: () => {},
     } as unknown as BotDatabase;
     const options: BotInstanceOptions = {
       id: "bot-oauth-test",
@@ -912,6 +916,136 @@ describe("spotifyPortsForBotId — per-bot go-librespot ports (Fix 3)", () => {
   });
 });
 
+// --- Persisting volume + play mode across restarts (#125) ------------------
+const cmdVol = (BotInstance.prototype as any).cmdVol as (this: unknown, cmd: any) => string;
+const cmdMode = (BotInstance.prototype as any).cmdMode as (this: unknown, cmd: any) => string;
+
+describe("BotInstance.cmdVol — persistence (#125)", () => {
+  function makeVolCtx() {
+    let stored = 75;
+    return {
+      id: "bot1",
+      player: {
+        setVolume: vi.fn((v: number) => { stored = v; }),
+        getVolume: vi.fn(() => stored),
+      },
+      database: { saveVolume: vi.fn() },
+      logger: { warn: vi.fn() },
+      emit: vi.fn(),
+      // The real private persist helper lives on the prototype; wire it so the
+      // test exercises the shipped persistence path end-to-end.
+      persistVolume: (BotInstance.prototype as any).persistVolume,
+    } as any;
+  }
+
+  it("saves the new volume via database.saveVolume (covers chat !vol AND the REST endpoint)", () => {
+    const ctx = makeVolCtx();
+    const res = cmdVol.call(ctx, { args: "40" });
+    expect(res).toBe("Volume set to 40%");
+    expect(ctx.player.setVolume).toHaveBeenCalledWith(40);
+    expect(ctx.database.saveVolume).toHaveBeenCalledWith("bot1", 40);
+    expect(ctx.emit).toHaveBeenCalledWith("stateChange");
+  });
+
+  it("does not persist an out-of-range volume", () => {
+    const ctx = makeVolCtx();
+    const res = cmdVol.call(ctx, { args: "999" });
+    expect(res).toBe("Usage: !vol <0-100>");
+    expect(ctx.player.setVolume).not.toHaveBeenCalled();
+    expect(ctx.database.saveVolume).not.toHaveBeenCalled();
+  });
+
+  it("swallows a database error so the volume change still succeeds", () => {
+    const ctx = makeVolCtx();
+    ctx.database.saveVolume = vi.fn(() => { throw new Error("disk full"); });
+    const res = cmdVol.call(ctx, { args: "50" });
+    expect(res).toBe("Volume set to 50%");
+    expect(ctx.player.setVolume).toHaveBeenCalledWith(50);
+    expect(ctx.logger.warn).toHaveBeenCalled();
+  });
+});
+
+describe("BotInstance.cmdMode — persistence (#125)", () => {
+  function makeModeCtx() {
+    let mode = "seq";
+    return {
+      id: "bot1",
+      queue: {
+        setMode: vi.fn((m: string) => { mode = m; }),
+        getMode: vi.fn(() => mode),
+      },
+      database: { savePlayMode: vi.fn() },
+      logger: { warn: vi.fn() },
+      emit: vi.fn(),
+      persistPlayMode: (BotInstance.prototype as any).persistPlayMode,
+    } as any;
+  }
+
+  it("saves the new play mode via database.savePlayMode", () => {
+    const ctx = makeModeCtx();
+    const res = cmdMode.call(ctx, { args: "rloop" });
+    expect(res).toBe("Play mode set to: rloop");
+    expect(ctx.queue.setMode).toHaveBeenCalledWith("rloop");
+    expect(ctx.database.savePlayMode).toHaveBeenCalledWith("bot1", "rloop");
+    expect(ctx.emit).toHaveBeenCalledWith("stateChange");
+  });
+
+  it("does not persist an unknown mode", () => {
+    const ctx = makeModeCtx();
+    const res = cmdMode.call(ctx, { args: "bogus" });
+    expect(res).toBe("Usage: !mode <seq|loop|random|rloop>");
+    expect(ctx.queue.setMode).not.toHaveBeenCalled();
+    expect(ctx.database.savePlayMode).not.toHaveBeenCalled();
+  });
+});
+
+describe("BotInstance — restores persisted player settings on construction (#125)", () => {
+  const provider = { platform: "netease" } as unknown as MusicProvider;
+  function makeOptions(id: string, database: BotDatabase): BotInstanceOptions {
+    const logger: any = { info() {}, warn() {}, error() {}, debug() {}, child() { return logger; } };
+    return {
+      id,
+      name: "RestoreBot",
+      tsOptions: { host: "localhost", port: 9987, queryPort: 10011, nickname: "RestoreBot" } as any,
+      neteaseProvider: provider,
+      qqProvider: provider,
+      bilibiliProvider: provider,
+      youtubeProvider: provider,
+      database,
+      config: { spotify: {} } as unknown as BotConfig,
+      logger,
+      avatarStore: { read: () => null } as unknown as AvatarStore,
+      spotifyControllerFactory: () => ({ on: () => {} } as unknown as SpotifyController),
+    };
+  }
+
+  it("applies the saved volume + play mode from the database", () => {
+    const db = createDatabase(":memory:");
+    db.saveBotInstance({
+      id: "bot-restore", name: "B", serverAddress: "x", serverPort: 9987, nickname: "n",
+      defaultChannel: "", channelId: "", channelPassword: "", autoStart: false,
+      serverProtocol: "", ts6ApiKey: "", serverPassword: "",
+    });
+    db.saveVolume("bot-restore", 33);
+    db.savePlayMode("bot-restore", "loop");
+
+    const bot = new BotInstance(makeOptions("bot-restore", db));
+    const status = bot.getStatus();
+    expect(status.volume).toBe(33);
+    expect(status.playMode).toBe("loop");
+    db.close();
+  });
+
+  it("falls back to defaults for a bot with no saved settings", () => {
+    const db = createDatabase(":memory:");
+    const bot = new BotInstance(makeOptions("brand-new", db));
+    const status = bot.getStatus();
+    expect(status.volume).toBe(75);
+    expect(status.playMode).toBe("seq");
+    db.close();
+  });
+});
+
 describe("BotInstance.handleTextMessage — response chunking (#116)", () => {
   it("splits a long command response into multiple sends, each under the byte cap", async () => {
     const ctx = makeGateCtx({ adminGroups: [] });

src/bot/instance.ts

@@ -6,7 +6,7 @@ import {
 } from "../ts-protocol/client.js";
 import { AudioPlayer } from "../audio/player.js";
 import { PlayQueue, PlayMode, type QueuedSong } from "../audio/queue.js";
-import type { MusicProvider, Song } from "../music/provider.js";
+import type { MusicProvider, Platform, Song } from "../music/provider.js";
 import {
   parseCommand,
   canRunCommand,
@@ -16,7 +16,13 @@ import { parseSongRef, parseSelectionIndex } from "./song-ref.js";
 import { splitTextIntoChunks } from "./text-chunk.js";
 import type { Logger } from "../logger.js";
 import type { BotDatabase, ProfileConfig } from "../data/database.js";
-import type { BotConfig, SpotifyConfig } from "../data/config.js";
+import {
+  isProviderEnabled,
+  defaultPlatform,
+  type BotConfig,
+  type SpotifyConfig,
+} from "../data/config.js";
+import type { JellyfinPlaybackReporter } from "../music/jellyfin.js";
 import { BotProfileManager } from "./profile.js";
 import type { AvatarStore } from "../data/avatars.js";
 import {
@@ -33,6 +39,15 @@ import type { SpotifyOAuth } from "../music/spotify/spotify-oauth.js";
 /** Reply sent when a non-admin invokes an admin-only chat command. */
 export const COMMAND_DENIED_MESSAGE = "⛔ 需要管理员权限（该命令仅限管理员服务器组）";
 
+/** Maps the persisted / command-line play-mode string to the PlayMode enum.
+ *  Shared by the !mode command and the restart-restore path (#125). */
+const PLAY_MODE_BY_VALUE: Record<string, PlayMode> = {
+  seq: PlayMode.Sequential,
+  loop: PlayMode.Loop,
+  random: PlayMode.Random,
+  rloop: PlayMode.RandomLoop,
+};
+
 /** Fallback message when Spotify audio can't be served (backend unavailable
  *  OR a per-track playTrack failure against a dead/failed sidecar). */
 const SPOTIFY_UNAVAILABLE_MESSAGE =
@@ -80,6 +95,7 @@ export interface BotInstanceOptions {
   localProvider?: MusicProvider;
   kugouProvider?: MusicProvider;
   spotifyProvider?: MusicProvider;
+  jellyfinProvider?: MusicProvider;
   database: BotDatabase;
   config: BotConfig;
   logger: Logger;
@@ -132,6 +148,7 @@ export class BotInstance extends EventEmitter {
   private localProvider: MusicProvider;
   private kugouProvider: MusicProvider;
   private spotifyProvider: MusicProvider;
+  private jellyfinProvider: MusicProvider;
   private database: BotDatabase;
   private config: BotConfig;
   private logger: Logger;
@@ -155,6 +172,9 @@ export class BotInstance extends EventEmitter {
   /** 当前曲实际播放时长（试听片段秒数或完整 duration）；resolveAndPlay 赋值。 */
   private effectiveDuration: number | undefined;
   private playGate: Promise<unknown> = Promise.resolve();
+  /** Per-bot Jellyfin playback-report session (start / ~10s progress / stop).
+   *  null when the wired provider has no reporting capability. */
+  private jellyfinReporter: JellyfinPlaybackReporter | null = null;
 
   constructor(options: BotInstanceOptions) {
     super();
@@ -167,6 +187,7 @@ export class BotInstance extends EventEmitter {
     this.localProvider = options.localProvider ?? options.neteaseProvider;
     this.kugouProvider = options.kugouProvider ?? options.neteaseProvider;
     this.spotifyProvider = options.spotifyProvider ?? options.neteaseProvider;
+    this.jellyfinProvider = options.jellyfinProvider ?? options.neteaseProvider;
     this.database = options.database;
     this.config = options.config;
     this.logger = options.logger.child({ botId: this.id });
@@ -176,6 +197,27 @@ export class BotInstance extends EventEmitter {
     this.player = new AudioPlayer(this.logger);
     this.queue = new PlayQueue();
 
+    // Restore persisted per-bot player settings (#125): volume + play mode
+    // survive restarts. getPlayerSettings returns validated values (the in-memory
+    // defaults when the row/column is absent), so this is a harmless no-op for a
+    // brand-new bot and reproduces the saved state for an existing one.
+    try {
+      const settings = this.database.getPlayerSettings(this.id);
+      this.player.setVolume(settings.volume);
+      const restoredMode = PLAY_MODE_BY_VALUE[settings.playMode];
+      if (restoredMode) this.queue.setMode(restoredMode);
+    } catch (err) {
+      this.logger.warn({ err }, "Failed to restore player settings — using defaults");
+    }
+
+    // Structural typing (like localProvider.sweepUnreferenced): only the real
+    // JellyfinProvider exposes createPlaybackReporter, so the netease fallback
+    // provider simply leaves reporting off.
+    const jfReportable = this.jellyfinProvider as MusicProvider & {
+      createPlaybackReporter?: () => JellyfinPlaybackReporter;
+    };
+    this.jellyfinReporter = jfReportable.createPlaybackReporter?.() ?? null;
+
     // One long-lived Spotify sidecar controller per bot. Construction is
     // cheap and side-effect-free — nothing spawns until ensureStarted().
     const spotifyBase =
@@ -312,6 +354,7 @@ export class BotInstance extends EventEmitter {
       this.spotifyController.stop();
       this.currentSourceIsSpotify = false;
       this.player.stop();
+      this.jellyfinReporter?.onStop();
       this.queue.clear();
       this.sweepLocalAudio("disconnected");
       // A lifecycle change must not leave a stale auto-resume armed.
@@ -327,6 +370,7 @@ export class BotInstance extends EventEmitter {
       // Fresh connection — clear any stale auto-pause flag from a prior session.
       this.autoPaused = false;
       this._startIdlePoller();
+      this._startJellyfinReportPoller();
     });
 
     // React near-instantly to channel membership changes. The 30s idle
@@ -397,6 +441,7 @@ export class BotInstance extends EventEmitter {
     this.spotifyController.stop();
     this.currentSourceIsSpotify = false;
     this.player.stop();
+    this.jellyfinReporter?.onStop();
     this.queue.clear();
     this.sweepLocalAudio("disconnected");
     this.connected = false;
@@ -475,6 +520,29 @@ export class BotInstance extends EventEmitter {
     }
   }
 
+  /**
+   * ~10s Jellyfin progress reporting, following the _startIdlePoller pattern:
+   * a self-rescheduling timeout guarded by this.connected, so it needs no
+   * explicit teardown. When the current track is not (or no longer) a jellyfin
+   * item, onStop() idempotently closes any open report session.
+   */
+  private _startJellyfinReportPoller(): void {
+    if (!this.jellyfinReporter) return;
+    const tick = () => {
+      if (!this.connected) return;
+      const reporter = this.jellyfinReporter!;
+      const current = this.queue.current();
+      const state = this.player.getState();
+      if (current?.platform === "jellyfin" && (state === "playing" || state === "paused")) {
+        reporter.onTick(current.id, this.player.getElapsed(), state === "paused");
+      } else {
+        reporter.onStop();
+      }
+      setTimeout(tick, 10_000);
+    };
+    setTimeout(tick, 10_000);
+  }
+
   private _scheduleIdleCheck(): void {
     if (this.idleTimer !== null) return; // 已经在倒计时，不重复创建
     const minutes = this.config.idleTimeoutMinutes ?? 0;
@@ -659,28 +727,54 @@ export class BotInstance extends EventEmitter {
     }
   }
 
-  getProviderFor(platform: "netease" | "qq" | "bilibili" | "youtube" | "local" | "kugou" | "spotify"): MusicProvider {
+  getProviderFor(platform: Platform): MusicProvider {
     if (platform === "bilibili") return this.bilibiliProvider;
     if (platform === "youtube") return this.youtubeProvider;
     if (platform === "local") return this.localProvider;
     if (platform === "kugou") return this.kugouProvider;
     if (platform === "spotify") return this.spotifyProvider;
+    if (platform === "jellyfin") return this.jellyfinProvider;
     return platform === "qq" ? this.qqProvider : this.neteaseProvider;
   }
 
+  /** Friendly gate for user-selected platforms (flags / URLs / REST params). */
+  assertProviderEnabled(platform: Platform): void {
+    if (!isProviderEnabled(this.config, platform)) {
+      throw new Error(
+        `音源未启用：${platform}（provider disabled — 需在配置 enabledProviders 中开启）`,
+      );
+    }
+  }
+
   private disableFmMode(): void {
     this.isFmMode = false;
     this.fmProvider = null;
     this.fmRequesterName = undefined;
   }
 
+  /** Chat-command source flags. No flag → the configured default platform
+   *  (netease in the default config; otherwise the first enabled source by
+   *  fixed priority — see defaultPlatform()). */
+  private static readonly FLAG_PLATFORMS: ReadonlyArray<[string, Platform]> = [
+    ["b", "bilibili"],
+    ["q", "qq"],
+    ["y", "youtube"],
+    ["k", "kugou"],
+    ["s", "spotify"],
+    ["n", "netease"],
+    ["j", "jellyfin"],
+  ];
+
   private getProvider(flags: Set<string>): MusicProvider {
-    if (flags.has("b")) return this.bilibiliProvider;
+    for (const [flag, platform] of BotInstance.FLAG_PLATFORMS) {
-    if (flags.has("q")) return this.qqProvider;
+      if (flags.has(flag)) {
-    if (flags.has("y")) return this.youtubeProvider;
+        this.assertProviderEnabled(platform);
-    if (flags.has("k")) return this.kugouProvider;
+        return this.getProviderFor(platform);
-    if (flags.has("s")) return this.spotifyProvider;
+      }
-    return this.neteaseProvider;
+    }
+    const def = defaultPlatform(this.config);
+    this.assertProviderEnabled(def);
+    return this.getProviderFor(def);
   }
 
   private requesterNameFromMessage(msg?: TS3TextMessage): string | undefined {
@@ -793,6 +887,7 @@ export class BotInstance extends EventEmitter {
           this.player.resume();
         }
         this.currentSourceIsSpotify = true;
+        this.jellyfinReporter?.onStop();
         song.url = result.url;
         // No trial clip for Spotify — full-track duration only (the near-end
         // stall watchdog is disabled for the external stream anyway).
@@ -823,6 +918,11 @@ export class BotInstance extends EventEmitter {
       // 试听片段用试听时长（让 player nearEnd 正确触发自动切歌）；完整曲回退 song.duration
       this.effectiveDuration = result.trialDuration ?? song.duration;
       this.player.play(result.url, 0, this.effectiveDuration);
+      // Jellyfin playback reporting: open a session for jellyfin tracks (the
+      // reporter closes the previous one itself); close any open session when
+      // playback moves to another source. Fire-and-forget — never blocks play.
+      if (song.platform === "jellyfin") this.jellyfinReporter?.onTrackStart(song.id);
+      else this.jellyfinReporter?.onStop();
       // Fresh playback (re)start — clear auto-pause so a later occupancy
       // change won't try to "resume" a track the user already restarted.
       this.autoPaused = false;
@@ -878,6 +978,7 @@ export class BotInstance extends EventEmitter {
     // 2) id:/URL — fetch that exact song.
     const ref = parseSongRef(args);
     if (ref) {
+      if (ref.platform) this.assertProviderEnabled(ref.platform);
       const provider = ref.platform ? this.getProviderFor(ref.platform) : this.getProvider(cmd.flags);
       const song = await provider.getSongDetail(ref.id);
       if (!song) return { error: `No song found for ${ref.platform ?? provider.platform} id: ${ref.id}` };
@@ -1019,6 +1120,7 @@ export class BotInstance extends EventEmitter {
     }
     this.currentSourceIsSpotify = false;
     this.player.stop();
+    this.jellyfinReporter?.onStop();
     this.autoPaused = false;
     this.queue.clear();
     this.sweepLocalAudio("stopped");
@@ -1056,10 +1158,36 @@ export class BotInstance extends EventEmitter {
     const vol = parseInt(cmd.args, 10);
     if (isNaN(vol) || vol < 0 || vol > 100) return "Usage: !vol <0-100>";
     this.player.setVolume(vol);
+    // Persist so the volume survives a restart (#125). Both the chat !vol command
+    // and the WebUI/REST volume endpoint funnel through here, so one write covers
+    // every entry point. Only volume is written — play mode is saved independently.
+    this.persistVolume();
     this.emit("stateChange");
     return `Volume set to ${vol}%`;
   }
 
+  /** Persist the current volume (#125). Best-effort: a DB error must never break
+   *  the volume change itself. */
+  private persistVolume(): void {
+    try {
+      this.database.saveVolume(this.id, this.player.getVolume());
+    } catch (err) {
+      this.logger.warn({ err }, "Failed to persist volume");
+    }
+  }
+
+  /** Persist the current play mode (#125). Best-effort, mirrors persistVolume.
+   *  Called ONLY from the explicit !mode command — NOT from FM/artist mode, whose
+   *  Random/Loop switch is a transient side effect that must not overwrite the
+   *  user's saved preference. */
+  private persistPlayMode(): void {
+    try {
+      this.database.savePlayMode(this.id, this.queue.getMode());
+    } catch (err) {
+      this.logger.warn({ err }, "Failed to persist play mode");
+    }
+  }
+
   private cmdNow(): string {
     const song = this.queue.current();
     if (!song) return "Nothing is playing";
@@ -1081,6 +1209,7 @@ export class BotInstance extends EventEmitter {
     this.spotifyController.stop();
     this.currentSourceIsSpotify = false;
     this.player.stop();
+    this.jellyfinReporter?.onStop();
     this.queue.clear();
     this.sweepLocalAudio("queue_cleared");
     this.disableFmMode();
@@ -1124,15 +1253,12 @@ export class BotInstance extends EventEmitter {
   }
 
   private cmdMode(cmd: ParsedCommand): string {
-    const modeMap: Record<string, PlayMode> = {
+    const mode = PLAY_MODE_BY_VALUE[cmd.args];
-      seq: PlayMode.Sequential,
-      loop: PlayMode.Loop,
-      random: PlayMode.Random,
-      rloop: PlayMode.RandomLoop,
-    };
-    const mode = modeMap[cmd.args];
     if (mode === undefined) return "Usage: !mode <seq|loop|random|rloop>";
     this.queue.setMode(mode);
+    // Persist so the play mode survives a restart (#125). The chat !mode command
+    // and the WebUI/REST mode endpoint both funnel through here.
+    this.persistPlayMode();
     this.emit("stateChange");
     return `Play mode set to: ${cmd.args}`;
   }
@@ -1141,14 +1267,14 @@ export class BotInstance extends EventEmitter {
     if (!cmd.args) return "Usage: !playlist <playlist name or ID>";
     const provider = this.getProvider(cmd.flags);
 
-    // Determine if input is a numeric ID or a name search
+    // Determine if input is a direct ID (numeric / Jellyfin GUID) or a name search
     const id = this.extractId(cmd.args);
-    const isNumericId = /^\d+$/.test(cmd.args.trim());
+    const isDirectId = this.looksLikeCollectionId(cmd.args);
 
     let playlistId: string;
 
-    if (isNumericId || id !== cmd.args) {
+    if (isDirectId || id !== cmd.args) {
-      // Input is a numeric ID or URL containing an ID — use existing logic
+      // Input is a direct ID or URL containing an ID — use existing logic
       playlistId = id;
     } else {
       // Name-based search
@@ -1196,12 +1322,12 @@ export class BotInstance extends EventEmitter {
     const provider = this.getProvider(cmd.flags);
 
     const id = this.extractId(cmd.args);
-    const isNumericId = /^\d+$/.test(cmd.args.trim());
+    const isDirectId = this.looksLikeCollectionId(cmd.args);
 
     let albumId: string;
 
-    if (isNumericId || id !== cmd.args) {
+    if (isDirectId || id !== cmd.args) {
-      // Input is a numeric ID or URL containing an ID — use directly
+      // Input is a direct ID (numeric / Jellyfin GUID) or URL containing an ID — use directly
       albumId = id;
     } else {
       // Name-based search
@@ -1360,15 +1486,20 @@ export class BotInstance extends EventEmitter {
 
   private cmdHelp(): string {
     const p = this.config.commandPrefix;
+    const def = defaultPlatform(this.config);
+    // Only advertise source flags whose provider is actually enabled.
+    const flagHelp = BotInstance.FLAG_PLATFORMS.filter(([, platform]) =>
+      isProviderEnabled(this.config, platform),
+    )
+      .map(([flag, platform]) => `-${flag}=${platform}`)
+      .join(" ");
     return [
       "TSMusicBot Commands:",
-      `${p}play <song>  — Search and play (most popular match)`,
+      `${p}play <song>  — Search and play (default source: ${def})`,
-      `${p}play -q <song> — Search from QQ Music`,
+      ...(flagHelp ? [`  Source flags: ${flagHelp}`] : []),
-      `${p}play -b <song> — Search from BiliBili`,
-      `${p}play -y <song> — Search from YouTube (yt-dlp)`,
       `${p}search <name> — List top matches to pick a specific (same-name) song`,
       `${p}play #N       — Play the Nth result of the last ${p}search`,
-      `${p}play id:<id>  — Play an exact song by id / URL (NetEase·QQ·BiliBili)`,
+      `${p}play id:<id>  — Play an exact song by id / URL`,
       `${p}add <song>   — Add to queue (also accepts #N / id: / URL)`,
       `${p}playnext <song> — Insert as next song (alias: ${p}pn)`,
       `${p}pause/resume — Pause/resume`,
@@ -1379,11 +1510,9 @@ export class BotInstance extends EventEmitter {
       `${p}remove <pos> — Remove song at position (see ${p}queue)`,
       `${p}mode <seq|loop|random|rloop> — Play mode`,
       `${p}playlist <name or id> — Load playlist by name or ID`,
-      `${p}playlist -q <name or id> — Load playlist from QQ Music`,
+      `${p}album <name or id> — Load album`,
-      `${p}album <id>   — Load album`,
+      `${p}fm           — Personal FM (default source: ${def}; source flags work too)`,
-      `${p}fm           — Personal FM (NetEase)`,
       `${p}artist <name> — Play songs by artist (loop)`,
-      `${p}artist -q <name> — Artist loop from QQ Music`,
       `${p}vote         — Vote to skip`,
       `${p}lyrics       — Show lyrics`,
       `${p}now          — Current song info`,
@@ -1471,6 +1600,17 @@ export class BotInstance extends EventEmitter {
     return input;
   }
 
+  /** Direct collection ids: numeric (NetEase/QQ) or Jellyfin GUID ItemIds
+   *  (32 hex chars, optionally dashed) — never treat those as name searches. */
+  private looksLikeCollectionId(raw: string): boolean {
+    const t = raw.trim();
+    return (
+      /^\d+$/.test(t) ||
+      /^[0-9a-fA-F]{32}$/.test(t) ||
+      /^[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}$/.test(t)
+    );
+  }
+
   /** Serialize queue-mutation + play sequences so concurrent requests can't
    *  interleave (audible track must match queue.currentIndex). */
   runExclusive<T>(fn: () => Promise<T>): Promise<T> {

src/bot/manager.ts

@@ -79,6 +79,7 @@ export class BotManager extends EventEmitter {
   private localProvider: MusicProvider;
   private kugouProvider: MusicProvider;
   private spotifyProvider: MusicProvider;
+  private jellyfinProvider: MusicProvider;
   private spotifyDataDir: string;
   private readonly spotifyOAuth?: SpotifyOAuth;
   private database: BotDatabase;
@@ -102,7 +103,8 @@ export class BotManager extends EventEmitter {
     kugouProvider?: MusicProvider,
     spotifyProvider?: MusicProvider,
     spotifyDataDir?: string,
-    spotifyOAuth?: SpotifyOAuth
+    spotifyOAuth?: SpotifyOAuth,
+    jellyfinProvider?: MusicProvider
   ) {
     super();
     this.neteaseProvider = neteaseProvider;
@@ -112,6 +114,7 @@ export class BotManager extends EventEmitter {
     this.localProvider = localProvider ?? neteaseProvider;
     this.kugouProvider = kugouProvider ?? neteaseProvider;
     this.spotifyProvider = spotifyProvider ?? neteaseProvider;
+    this.jellyfinProvider = jellyfinProvider ?? neteaseProvider;
     this.spotifyDataDir = spotifyDataDir ?? path.join(process.cwd(), "data", "spotify");
     this.spotifyOAuth = spotifyOAuth;
     // Let the local provider see which uploads are still referenced by any
@@ -153,6 +156,7 @@ export class BotManager extends EventEmitter {
       localProvider: this.localProvider,
       kugouProvider: this.kugouProvider,
       spotifyProvider: this.spotifyProvider,
+      jellyfinProvider: this.jellyfinProvider,
       database: this.database,
       config: this.config,
       logger: this.logger,
@@ -296,6 +300,7 @@ export class BotManager extends EventEmitter {
         localProvider: this.localProvider,
         kugouProvider: this.kugouProvider,
         spotifyProvider: this.spotifyProvider,
+        jellyfinProvider: this.jellyfinProvider,
         database: this.database,
         config: this.config,
         logger: this.logger,
@@ -353,6 +358,7 @@ export class BotManager extends EventEmitter {
         localProvider: this.localProvider,
         kugouProvider: this.kugouProvider,
         spotifyProvider: this.spotifyProvider,
+        jellyfinProvider: this.jellyfinProvider,
         database: this.database,
         config: this.config,
         logger: this.logger,

src/data/config.test.ts

@@ -10,7 +10,7 @@ import {
   renameSync,
 } from "node:fs";
 import { tmpdir } from "node:os";
-import { getDefaultConfig, loadConfig, saveConfig, migrateLegacyConfig } from "./config.js";
+import { getDefaultConfig, loadConfig, saveConfig, migrateLegacyConfig, defaultPlatform } from "./config.js";
 
 // Wrap the fs functions config.ts uses in call-through spies so the atomic-write
 // and transient-read-error paths can be observed/forced. Everything else (mkdtemp,
@@ -48,6 +48,159 @@ describe("config", () => {
     expect(config).toEqual(getDefaultConfig());
   });
 
+  it("defaults to the online sources with jellyfin as opt-in (disabled)", () => {
+    const config = getDefaultConfig();
+    expect(config.enabledProviders).toEqual(["netease", "qq", "bilibili", "youtube", "kugou"]);
+    expect(config.enabledProviders).not.toContain("jellyfin");
+  });
+
+  it("keeps pre-gating behavior for legacy configs without enabledProviders", () => {
+    const dir = makeTmpDir();
+    const path = join(dir, "config.json");
+    // A config written before enabledProviders existed: no such field.
+    writeFileSync(path, JSON.stringify({ webPort: 4000 }));
+    const config = loadConfig(path);
+    expect(config.enabledProviders).toEqual(["netease", "qq", "bilibili", "youtube", "kugou"]);
+    expect(defaultPlatform(config)).toBe("netease");
+  });
+
+  it("defaultPlatform follows the fixed priority order", () => {
+    const config = getDefaultConfig();
+    expect(defaultPlatform(config)).toBe("netease");
+
+    // Jellyfin ranks after the online music platforms…
+    config.enabledProviders = ["netease", "jellyfin"];
+    expect(defaultPlatform(config)).toBe("netease");
+    // …but ahead of the video sites…
+    config.enabledProviders = ["bilibili", "jellyfin", "youtube"];
+    expect(defaultPlatform(config)).toBe("jellyfin");
+    // …and is the default when it is the only enabled source.
+    config.enabledProviders = ["jellyfin"];
+    expect(defaultPlatform(config)).toBe("jellyfin");
+    // Nothing enabled → netease fallback (the gate then reports it disabled).
+    config.enabledProviders = [];
+    expect(defaultPlatform(config)).toBe("netease");
+  });
+
+  // --- #126: an explicit operator default source ---
+
+  it("defaultPlatform is null by default (follow the priority order)", () => {
+    expect(getDefaultConfig().defaultPlatform).toBeNull();
+  });
+
+  it("defaultPlatform() honors an explicit, enabled preference over the priority order", () => {
+    const config = getDefaultConfig();
+    // Priority would pick netease; a Bilibili-loving server sets B站 instead (#126).
+    config.defaultPlatform = "bilibili";
+    expect(defaultPlatform(config)).toBe("bilibili");
+  });
+
+  it("defaultPlatform() ignores a preference whose source is not enabled", () => {
+    const config = getDefaultConfig();
+    config.defaultPlatform = "jellyfin"; // opt-in, not enabled in the default config
+    // Falls back to the fixed priority order (netease)…
+    expect(defaultPlatform(config)).toBe("netease");
+    // …until the preferred source is actually enabled.
+    config.enabledProviders = [...config.enabledProviders, "jellyfin"];
+    expect(defaultPlatform(config)).toBe("jellyfin");
+  });
+
+  it("loadConfig keeps a valid, enabled defaultPlatform", () => {
+    const dir = makeTmpDir();
+    const path = join(dir, "config.json");
+    writeFileSync(path, JSON.stringify({ defaultPlatform: "bilibili" }));
+    const config = loadConfig(path);
+    expect(config.defaultPlatform).toBe("bilibili");
+    expect(defaultPlatform(config)).toBe("bilibili");
+  });
+
+  it("loadConfig nulls a defaultPlatform that is unknown, disabled, or the wrong type", () => {
+    const dir = makeTmpDir();
+    // Unknown provider name.
+    const p1 = join(dir, "c1.json");
+    writeFileSync(p1, JSON.stringify({ defaultPlatform: "bogus" }));
+    expect(loadConfig(p1).defaultPlatform).toBeNull();
+    // Known provider, but not in enabledProviders.
+    const p2 = join(dir, "c2.json");
+    writeFileSync(p2, JSON.stringify({ enabledProviders: ["netease"], defaultPlatform: "bilibili" }));
+    expect(loadConfig(p2).defaultPlatform).toBeNull();
+    // Wrong type.
+    const p3 = join(dir, "c3.json");
+    writeFileSync(p3, JSON.stringify({ defaultPlatform: 42 }));
+    expect(loadConfig(p3).defaultPlatform).toBeNull();
+  });
+
+  it("round-trips defaultPlatform through save/load", () => {
+    const dir = makeTmpDir();
+    const path = join(dir, "config.json");
+    saveConfig(path, { ...getDefaultConfig(), defaultPlatform: "qq" });
+    expect(loadConfig(path).defaultPlatform).toBe("qq");
+  });
+
+  it("respects an explicit jellyfin-only enabledProviders from disk", () => {
+    const dir = makeTmpDir();
+    const path = join(dir, "config.json");
+    // e.g. a config persisted by the short-lived jellyfin-by-default builds.
+    writeFileSync(path, JSON.stringify({ enabledProviders: ["jellyfin"] }));
+    const config = loadConfig(path);
+    expect(config.enabledProviders).toEqual(["jellyfin"]);
+    expect(defaultPlatform(config)).toBe("jellyfin");
+  });
+
+  // ── audioQuality persistence (#125) ─────────────────────────────────────
+  it("defaults audioQuality to each provider's in-memory default", () => {
+    const config = getDefaultConfig();
+    expect(config.audioQuality).toEqual({
+      netease: "exhigh",
+      qq: "exhigh",
+      bilibili: "high",
+      kugou: "128",
+      jellyfin: "direct",
+    });
+  });
+
+  it("fills audioQuality defaults for a legacy config without the field", () => {
+    const dir = makeTmpDir();
+    const path = join(dir, "config.json");
+    writeFileSync(path, JSON.stringify({ webPort: 4000 }));
+    const config = loadConfig(path);
+    expect(config.audioQuality).toEqual(getDefaultConfig().audioQuality);
+  });
+
+  it("round-trips a saved audioQuality through save/load", () => {
+    const dir = makeTmpDir();
+    const path = join(dir, "config.json");
+    const config = getDefaultConfig();
+    config.audioQuality = {
+      netease: "lossless",
+      qq: "flac",
+      bilibili: "high",
+      kugou: "flac",
+      jellyfin: "320",
+    };
+    saveConfig(path, config);
+    const loaded = loadConfig(path);
+    expect(loaded.audioQuality).toEqual(config.audioQuality);
+  });
+
+  it("coerces missing / non-string audioQuality fields to defaults", () => {
+    const dir = makeTmpDir();
+    const path = join(dir, "config.json");
+    // netease valid, qq blank, bilibili wrong type, kugou missing, jellyfin valid.
+    writeFileSync(
+      path,
+      JSON.stringify({ audioQuality: { netease: "lossless", qq: "  ", bilibili: 320, jellyfin: "192" } }),
+    );
+    const config = loadConfig(path);
+    expect(config.audioQuality).toEqual({
+      netease: "lossless",
+      qq: "exhigh", // blank → default
+      bilibili: "high", // non-string → default
+      kugou: "128", // missing → default
+      jellyfin: "192",
+    });
+  });
+
   it("creates config file on save", () => {
     const dir = makeTmpDir();
     const path = join(dir, "sub", "config.json");

src/data/config.ts

@@ -26,6 +26,81 @@ export interface SpotifyConfig {
   bitrate: number;
 }
 
+export interface JellyfinConfig {
+  /** Base URL of the Jellyfin server, e.g. "https://jellyfin.example.com". */
+  serverUrl: string;
+  authMode: "userpass" | "apikey";
+  // userpass mode
+  username: string;
+  password: string;
+  // apikey mode: admin API key + the user whose library/favorites/playlists are used
+  apiKey: string;
+  userId: string;
+}
+
+/**
+ * Per-provider audio quality (音质), persisted so a restart keeps the user's
+ * choice instead of resetting each provider to its in-memory default (#125).
+ * The values are the same strings the WebUI/REST `POST /api/music/quality`
+ * endpoint sends and each provider's setQuality() accepts; on startup they are
+ * replayed onto the (shared, process-wide) providers. Providers ignore/normalize
+ * unknown values, so a stale/hand-edited entry can never break playback.
+ */
+export interface AudioQualityConfig {
+  netease: string;
+  qq: string;
+  bilibili: string;
+  kugou: string;
+  jellyfin: string;
+}
+
+/**
+ * Providers gated by `enabledProviders`. Not listed here:
+ *  - "local"   → governed by the existing `localAudioEnabled` flag
+ *  - "spotify" → governed by the existing `spotify.enabled` flag
+ */
+export const GATEABLE_PROVIDERS = [
+  "jellyfin",
+  "netease",
+  "qq",
+  "bilibili",
+  "youtube",
+  "kugou",
+] as const;
+export type GateableProvider = (typeof GATEABLE_PROVIDERS)[number];
+
+/** Whether a platform may be used for search/playback under the current config. */
+export function isProviderEnabled(config: BotConfig, platform: string): boolean {
+  if (platform === "local") return config.localAudioEnabled !== false;
+  if (platform === "spotify") return config.spotify.enabled;
+  return config.enabledProviders.includes(platform as GateableProvider);
+}
+
+/**
+ * The default platform for !play/!add/!playlist/!album and all REST/WebUI calls.
+ *
+ * An explicit user preference (`config.defaultPlatform`) wins whenever it points
+ * at a source that is currently enabled — this lets e.g. a Bilibili-loving server
+ * set B站 as the default so `!play <歌名>` needs no `-b` flag (issue #126). The
+ * enabled-guard here matters at runtime too: if the operator later disables the
+ * preferred source, we must fall through instead of returning a dead default.
+ *
+ * With no (usable) preference we fall back to the first enabled provider in a
+ * fixed priority order (netease with the default config; jellyfin ranks after
+ * the online music platforms because it is an opt-in source, but ahead of the
+ * video sites for users who run it as their only music library). Falls back to
+ * "netease" when nothing is enabled so callers always get a provider — the
+ * enabled-gate then produces the friendly error.
+ */
+export function defaultPlatform(config: BotConfig): GateableProvider {
+  const pref = config.defaultPlatform;
+  if (pref && config.enabledProviders.includes(pref)) return pref;
+  for (const p of ["netease", "qq", "kugou", "jellyfin", "bilibili", "youtube"] as const) {
+    if (config.enabledProviders.includes(p)) return p;
+  }
+  return "netease";
+}
+
 export interface BotConfig {
   webPort: number;
   locale: "zh" | "en";
@@ -51,6 +126,25 @@ export interface BotConfig {
   trustProxy: boolean;
   guestMode: GuestModeConfig;
   spotify: SpotifyConfig;
+  jellyfin: JellyfinConfig;
+  /** Persisted per-provider audio quality (音质), restored on startup (#125). */
+  audioQuality: AudioQualityConfig;
+  /**
+   * Which gateable providers are active (see GATEABLE_PROVIDERS). Default is
+   * the online sources (NetEase/QQ/Bilibili/YouTube/Kugou); jellyfin is an
+   * opt-in extra that must be listed here (Settings → Jellyfin 音乐库 toggles
+   * it). Sources not listed stay disabled — the NetEase/QQ embedded sidecar
+   * API servers must not start (or bind ports 3001/3200) unless enabled.
+   */
+  enabledProviders: GateableProvider[];
+  /**
+   * Optional operator-chosen default source for commands/REST/WebUI calls that
+   * omit a platform (issue #126). When set to an enabled gateable provider it
+   * overrides the fixed priority order in defaultPlatform(); `null` (the default)
+   * keeps that priority order. loadConfig cleans stale/unknown/disabled values
+   * back to null.
+   */
+  defaultPlatform: GateableProvider | null;
 }
 
 export function getDefaultConfig(): BotConfig {
@@ -95,6 +189,25 @@ export function getDefaultConfig(): BotConfig {
       deviceName: "TSMusicBot",
       bitrate: 320,
     },
+    jellyfin: {
+      serverUrl: "",
+      authMode: "userpass",
+      username: "",
+      password: "",
+      apiKey: "",
+      userId: "",
+    },
+    // Mirrors each provider's own in-memory default quality; overwritten on
+    // startup once the user has changed a quality (persisted via #125).
+    audioQuality: {
+      netease: "exhigh",
+      qq: "exhigh",
+      bilibili: "high",
+      kugou: "128",
+      jellyfin: "direct",
+    },
+    enabledProviders: ["netease", "qq", "bilibili", "youtube", "kugou"],
+    defaultPlatform: null,
   };
 }
 
@@ -221,12 +334,70 @@ export function loadConfig(path: string): BotConfig {
         : defaults.spotify.bitrate,
     };
 
+    // Sanitize the jellyfin block on load, mirroring the spotify handling: a
+    // hand-edited/legacy config.json must never smuggle wrong shapes past the
+    // gate. Unknown/invalid sub-fields fall back to defaults.
+    const partialJf = (partial.jellyfin ?? {}) as Partial<JellyfinConfig>;
+    const jellyfin: JellyfinConfig = {
+      serverUrl:
+        typeof partialJf.serverUrl === "string"
+          ? partialJf.serverUrl.trim().replace(/\/+$/, "")
+          : defaults.jellyfin.serverUrl,
+      authMode:
+        partialJf.authMode === "apikey" ? "apikey" : defaults.jellyfin.authMode,
+      username:
+        typeof partialJf.username === "string" ? partialJf.username : defaults.jellyfin.username,
+      password:
+        typeof partialJf.password === "string" ? partialJf.password : defaults.jellyfin.password,
+      apiKey: typeof partialJf.apiKey === "string" ? partialJf.apiKey : defaults.jellyfin.apiKey,
+      userId: typeof partialJf.userId === "string" ? partialJf.userId : defaults.jellyfin.userId,
+    };
+
+    // enabledProviders → known providers only; a non-array falls back to the
+    // default (online sources, jellyfin off). An explicitly-empty array is
+    // respected (operator chose to disable every gateable source).
+    const enabledProviders = Array.isArray(partial.enabledProviders)
+      ? partial.enabledProviders.filter((p): p is GateableProvider =>
+          (GATEABLE_PROVIDERS as readonly string[]).includes(p as string),
+        )
+      : defaults.enabledProviders;
+
+    // defaultPlatform → an explicit operator default (issue #126). Keep it only
+    // when it names a KNOWN gateable provider that is ALSO currently enabled;
+    // anything else (unknown value, disabled source, wrong type, missing) becomes
+    // null so defaultPlatform() falls back to the fixed priority order.
+    const rawDefault = partial.defaultPlatform;
+    const defaultPlatformPref: GateableProvider | null =
+      typeof rawDefault === "string" &&
+      (GATEABLE_PROVIDERS as readonly string[]).includes(rawDefault) &&
+      enabledProviders.includes(rawDefault as GateableProvider)
+        ? (rawDefault as GateableProvider)
+        : null;
+
+    // audioQuality → per-provider strings; each field falls back to its default
+    // when missing/blank/non-string (a hand-edited/legacy config must never smuggle
+    // a non-string past the gate — the value is fed straight to provider.setQuality).
+    const partialAq = (partial.audioQuality ?? {}) as Partial<AudioQualityConfig>;
+    const coerceQuality = (v: unknown, fallback: string): string =>
+      typeof v === "string" && v.trim() ? v : fallback;
+    const audioQuality: AudioQualityConfig = {
+      netease: coerceQuality(partialAq.netease, defaults.audioQuality.netease),
+      qq: coerceQuality(partialAq.qq, defaults.audioQuality.qq),
+      bilibili: coerceQuality(partialAq.bilibili, defaults.audioQuality.bilibili),
+      kugou: coerceQuality(partialAq.kugou, defaults.audioQuality.kugou),
+      jellyfin: coerceQuality(partialAq.jellyfin, defaults.audioQuality.jellyfin),
+    };
+
     return {
       ...defaults,
       ...partial,
       adminGroups,
       guestMode: gm,
       spotify,
+      jellyfin,
+      audioQuality,
+      enabledProviders,
+      defaultPlatform: defaultPlatformPref,
     };
   }
 }

src/data/database.test.ts

@@ -131,6 +131,92 @@ describe("database", () => {
     expect(botDb.deleteBotInstance("nonexistent")).toBe(false);
   });
 
+  it("persists and restores per-bot player settings (volume + play mode) (#125)", () => {
+    const inst = {
+      id: "bot-ps",
+      name: "B",
+      serverAddress: "x",
+      serverPort: 9987,
+      nickname: "n",
+      defaultChannel: "",
+      channelId: "",
+      channelPassword: "",
+      autoStart: false,
+      serverProtocol: "",
+      ts6ApiKey: "",
+      serverPassword: "",
+    };
+    botDb.saveBotInstance(inst);
+
+    // Fresh row → in-memory defaults.
+    expect(botDb.getPlayerSettings("bot-ps")).toEqual({ volume: 75, playMode: "seq" });
+
+    // Volume and play mode persist independently.
+    botDb.saveVolume("bot-ps", 42);
+    expect(botDb.getPlayerSettings("bot-ps")).toEqual({ volume: 42, playMode: "seq" });
+    botDb.savePlayMode("bot-ps", "rloop");
+    expect(botDb.getPlayerSettings("bot-ps")).toEqual({ volume: 42, playMode: "rloop" });
+
+    // A later saveBotInstance upsert (e.g. autoStart toggle) must NOT reset them.
+    botDb.saveBotInstance({ ...inst, autoStart: true });
+    expect(botDb.getPlayerSettings("bot-ps")).toEqual({ volume: 42, playMode: "rloop" });
+  });
+
+  it("defaults player settings for an unknown bot and validates inputs (#125)", () => {
+    // No row → defaults.
+    expect(botDb.getPlayerSettings("does-not-exist")).toEqual({ volume: 75, playMode: "seq" });
+
+    botDb.saveBotInstance({
+      id: "bot-v",
+      name: "B",
+      serverAddress: "x",
+      serverPort: 9987,
+      nickname: "n",
+      defaultChannel: "",
+      channelId: "",
+      channelPassword: "",
+      autoStart: false,
+      serverProtocol: "",
+      ts6ApiKey: "",
+      serverPassword: "",
+    });
+    // Out-of-range volume is clamped; an unknown play mode is ignored (not stored).
+    botDb.saveVolume("bot-v", 250);
+    expect(botDb.getPlayerSettings("bot-v").volume).toBe(100);
+    botDb.saveVolume("bot-v", -10);
+    expect(botDb.getPlayerSettings("bot-v").volume).toBe(0);
+    botDb.savePlayMode("bot-v", "bogus");
+    expect(botDb.getPlayerSettings("bot-v").playMode).toBe("seq");
+  });
+
+  it("migrates volume + play_mode columns onto a legacy bot_instances table (#125)", () => {
+    const dir = mkdtempSync(join(tmpdir(), "tsmb-mig-"));
+    const p = join(dir, "legacy.db");
+    // Build a minimal pre-#125 bot_instances table (no volume/play_mode columns).
+    const legacy = createDatabase(p);
+    legacy.db.exec("DROP TABLE bot_instances");
+    legacy.db.exec(`CREATE TABLE bot_instances (
+      id TEXT PRIMARY KEY, name TEXT NOT NULL, serverAddress TEXT NOT NULL,
+      serverPort INTEGER NOT NULL, nickname TEXT NOT NULL, defaultChannel TEXT NOT NULL,
+      channelId TEXT NOT NULL DEFAULT '', channelPassword TEXT NOT NULL,
+      autoStart INTEGER NOT NULL DEFAULT 0, serverProtocol TEXT NOT NULL DEFAULT '',
+      ts6ApiKey TEXT NOT NULL DEFAULT '', serverPassword TEXT NOT NULL DEFAULT '', identity TEXT
+    )`);
+    legacy.db
+      .prepare("INSERT INTO bot_instances (id, name, serverAddress, serverPort, nickname, defaultChannel, channelPassword) VALUES (?, 'B', 'x', 9987, 'n', '', '')")
+      .run("legacy-bot");
+    legacy.close();
+
+    // Reopen → migrateSchema adds the columns; the old row gets the defaults.
+    const reopened = createDatabase(p);
+    const cols = (reopened.db.prepare("PRAGMA table_info(bot_instances)").all() as Array<{ name: string }>).map((c) => c.name);
+    expect(cols).toContain("volume");
+    expect(cols).toContain("play_mode");
+    expect(reopened.getPlayerSettings("legacy-bot")).toEqual({ volume: 75, playMode: "seq" });
+    reopened.close();
+    rmSync(dir, { recursive: true, force: true });
+  });
+
   it("persists and clears customAvatarPath on a bot instance", () => {
     const inst = {
       id: "bot-1",

src/data/database.ts

@@ -8,7 +8,7 @@ export interface PlayHistoryEntry {
   songName: string;
   artist: string;
   album: string;
-  platform: "netease" | "qq" | "bilibili" | "youtube" | "local" | "kugou" | "spotify";
+  platform: "netease" | "qq" | "bilibili" | "youtube" | "local" | "kugou" | "spotify" | "jellyfin";
   coverUrl: string;
   requestedBy?: string;
 }
@@ -55,6 +55,26 @@ export const DEFAULT_PROFILE_CONFIG: ProfileConfig = {
   nowPlayingMsgEnabled: true,
 };
 
+/**
+ * Per-bot player settings persisted across restarts (#125): the playback volume
+ * and play mode. These reset to defaults on process restart when kept only in
+ * memory (AudioPlayer/PlayQueue), so they are stored on the bot_instances row —
+ * exactly like the per-bot profile flags — and restored when the bot is (re)built.
+ */
+export interface PlayerSettings {
+  /** 0-100. */
+  volume: number;
+  /** PlayMode string: "seq" | "loop" | "random" | "rloop". */
+  playMode: string;
+}
+
+const PLAY_MODES = new Set(["seq", "loop", "random", "rloop"]);
+
+export const DEFAULT_PLAYER_SETTINGS: PlayerSettings = {
+  volume: 75,
+  playMode: "seq",
+};
+
 export interface FavoritePlaylist {
   id: number;
   userId: string;
@@ -75,6 +95,9 @@ export interface BotDatabase {
   deleteBotInstance(id: string): boolean;
   getProfileConfig(botId: string): ProfileConfig;
   saveProfileConfig(botId: string, config: ProfileConfig): void;
+  getPlayerSettings(botId: string): PlayerSettings;
+  saveVolume(botId: string, volume: number): void;
+  savePlayMode(botId: string, playMode: string): void;
   getCustomAvatarPath(botId: string): string | null;
   setCustomAvatarPath(botId: string, path: string | null): void;
   addFavorite(userId: string, playlist: { platform: string; playlistId: string; name: string; coverUrl: string; songCount: number }): void;
@@ -119,6 +142,15 @@ function migrateSchema(db: Database.Database): void {
   if (!names.includes("custom_avatar_path")) {
     db.exec("ALTER TABLE bot_instances ADD COLUMN custom_avatar_path TEXT");
   }
+  // Per-bot persisted player settings (#125): volume + play mode. Defaults match
+  // AudioPlayer/PlayQueue's in-memory defaults so pre-existing rows keep behaving
+  // exactly as before until the user changes them.
+  if (!names.includes("volume")) {
+    db.exec("ALTER TABLE bot_instances ADD COLUMN volume INTEGER NOT NULL DEFAULT 75");
+  }
+  if (!names.includes("play_mode")) {
+    db.exec("ALTER TABLE bot_instances ADD COLUMN play_mode TEXT NOT NULL DEFAULT 'seq'");
+  }
 
   const userColumns = db.prepare("PRAGMA table_info(users)").all() as Array<{ name: string }>;
   const userColNames = userColumns.map((c) => c.name);
@@ -161,6 +193,8 @@ function initTables(db: Database.Database): void {
       serverProtocol TEXT NOT NULL DEFAULT '',
       ts6ApiKey TEXT NOT NULL DEFAULT '',
       serverPassword TEXT NOT NULL DEFAULT '',
+      volume INTEGER NOT NULL DEFAULT 75,
+      play_mode TEXT NOT NULL DEFAULT 'seq',
       identity TEXT
     );
 
@@ -321,6 +355,12 @@ export function createDatabase(dbPath: string): BotDatabase {
     WHERE id = @id
   `);
 
+  const selectPlayerSettings = db.prepare(
+    `SELECT volume, play_mode FROM bot_instances WHERE id = ?`,
+  );
+  const updateVolume = db.prepare(`UPDATE bot_instances SET volume = ? WHERE id = ?`);
+  const updatePlayMode = db.prepare(`UPDATE bot_instances SET play_mode = ? WHERE id = ?`);
+
   const selectCustomAvatar = db.prepare(`SELECT custom_avatar_path FROM bot_instances WHERE id = ?`);
   const updateCustomAvatar = db.prepare(`UPDATE bot_instances SET custom_avatar_path = ? WHERE id = ?`);
 
@@ -406,6 +446,36 @@ export function createDatabase(dbPath: string): BotDatabase {
       });
     },
 
+    getPlayerSettings(botId) {
+      const row = selectPlayerSettings.get(botId) as
+        | { volume: number | null; play_mode: string | null }
+        | undefined;
+      if (!row) return { ...DEFAULT_PLAYER_SETTINGS };
+      // Coerce/validate: clamp volume to 0-100 and fall back to defaults for any
+      // NULL / out-of-range / unknown value (a hand-edited DB must never feed a
+      // bad value into AudioPlayer.setVolume / PlayQueue.setMode).
+      const rawVol = typeof row.volume === "number" ? row.volume : DEFAULT_PLAYER_SETTINGS.volume;
+      const volume = Number.isFinite(rawVol)
+        ? Math.max(0, Math.min(100, Math.round(rawVol)))
+        : DEFAULT_PLAYER_SETTINGS.volume;
+      const playMode =
+        typeof row.play_mode === "string" && PLAY_MODES.has(row.play_mode)
+          ? row.play_mode
+          : DEFAULT_PLAYER_SETTINGS.playMode;
+      return { volume, playMode };
+    },
+
+    saveVolume(botId, volume) {
+      const clamped = Math.max(0, Math.min(100, Math.round(volume)));
+      updateVolume.run(clamped, botId);
+    },
+
+    savePlayMode(botId, playMode) {
+      // Persist only recognized modes so a bad value can never poison the row.
+      if (!PLAY_MODES.has(playMode)) return;
+      updatePlayMode.run(playMode, botId);
+    },
+
     getCustomAvatarPath(botId) {
       const row = selectCustomAvatar.get(botId) as { custom_avatar_path: string | null } | undefined;
       return row?.custom_avatar_path ?? null;

src/index.ts

@@ -1,6 +1,6 @@
 import path from "node:path";
 import { fileURLToPath } from "node:url";
-import { loadConfig, saveConfig, migrateLegacyConfig } from "./data/config.js";
+import { loadConfig, saveConfig, migrateLegacyConfig, isProviderEnabled } from "./data/config.js";
 import { createDatabase } from "./data/database.js";
 import { createLogger } from "./logger.js";
 import { createApiServerManager } from "./music/api-server.js";
@@ -9,6 +9,7 @@ import { QQMusicProvider } from "./music/qq.js";
 import { BiliBiliProvider } from "./music/bilibili.js";
 import { LocalMusicProvider } from "./music/local.js";
 import { KugouProvider } from "./music/kugou.js";
+import { JellyfinProvider } from "./music/jellyfin.js";
 import { SpotifyProvider } from "./music/spotify/provider.js";
 import { SpotifyOAuth, createFileOAuthTokenStore } from "./music/spotify/spotify-oauth.js";
 import { createCookieStore } from "./music/auth.js";
@@ -52,7 +53,14 @@ async function main() {
   const db = createDatabase(DB_PATH);
 
   const apiServer = createApiServerManager(
-    { neteasePort: config.neteaseApiPort, qqMusicPort: config.qqMusicApiPort },
+    {
+      neteasePort: config.neteaseApiPort,
+      qqMusicPort: config.qqMusicApiPort,
+      // Provider gating: a sidecar only starts (and binds 3001/3200) when its
+      // source is listed in enabledProviders — both are on in the default config.
+      neteaseEnabled: isProviderEnabled(config, "netease"),
+      qqEnabled: isProviderEnabled(config, "qq"),
+    },
     logger
   );
   await apiServer.start();
@@ -82,6 +90,25 @@ async function main() {
   const kugouCookie = cookieStore.load("kugou");
   if (kugouCookie) kugouProvider.setCookie(kugouCookie);
 
+  // Jellyfin: admin-configured connection (no QR). The persisted blob carries
+  // AccessToken + User.Id + DeviceId and lives alongside the other platform
+  // cookies; a Jellyfin server that is unreachable at boot must not block
+  // startup — the provider authenticates lazily on first use.
+  const jellyfinProvider = new JellyfinProvider(logger);
+  jellyfinProvider.configure(config.jellyfin);
+  const jellyfinAuth = cookieStore.load("jellyfin");
+  if (jellyfinAuth) jellyfinProvider.setCookie(jellyfinAuth);
+  jellyfinProvider.setPersist((serialized) => cookieStore.save("jellyfin", serialized));
+
+  // Restore the persisted per-provider audio quality (#125) onto the shared,
+  // process-wide providers so a restart keeps the user's choice. setQuality()
+  // normalizes/ignores unknown values, so a stale entry can never break playback.
+  neteaseProvider.setQuality(config.audioQuality.netease);
+  qqProvider.setQuality(config.audioQuality.qq);
+  bilibiliProvider.setQuality(config.audioQuality.bilibili);
+  kugouProvider.setQuality(config.audioQuality.kugou);
+  jellyfinProvider.setQuality(config.audioQuality.jellyfin);
+
   const permissions = createPermissionStore(db.db);
 
   // Single process-wide Spotify authorization (one Premium account for Stage 3).
@@ -114,7 +141,8 @@ async function main() {
     kugouProvider,
     spotifyProvider,
     SPOTIFY_DATA_DIR,
-    spotifyOAuth
+    spotifyOAuth,
+    jellyfinProvider
   );
   await botManager.loadSavedBots();
 
@@ -127,6 +155,7 @@ async function main() {
     localProvider,
     kugouProvider,
     spotifyProvider,
+    jellyfinProvider,
     database: db,
     avatarStore,
     config,

src/music/api-server.test.ts

@@ -1,5 +1,34 @@
-import { describe, it, expect } from "vitest";
+import { describe, it, expect, vi, beforeEach } from "vitest";
-import { describeQqApiStartupError } from "./api-server.js";
+import { createApiServerManager, describeQqApiStartupError } from "./api-server.js";
+import type { Logger } from "../logger.js";
+
+// Record every listen() the QQ sidecar makes so we can assert it is always
+// pinned to the configured port (regression coverage for issue #122).
+const mockState = vi.hoisted(() => ({
+  listenCalls: [] as Array<{ port: number; host: string }>,
+}));
+
+vi.mock("@sansenjian/qq-music-api", () => {
+  const app = {
+    listen(port: number, host: string, cb?: () => void) {
+      mockState.listenCalls.push({ port, host });
+      const server = {
+        address: () => ({ port, address: host, family: "IPv4" as const }),
+        on() {
+          return server;
+        },
+        close(done?: () => void) {
+          done?.();
+        },
+      };
+      // Real net/Koa fire the listening callback on a later tick, after the
+      // caller has captured the returned server handle.
+      if (cb) setImmediate(cb);
+      return server;
+    },
+  };
+  return { default: app };
+});
 
 describe("describeQqApiStartupError", () => {
   it("flags ERR_REQUIRE_ESM by error code with version-pin guidance", () => {
@@ -28,3 +57,77 @@ describe("describeQqApiStartupError", () => {
     expect(describeQqApiStartupError(null)).toBeNull();
   });
 });
+
+// Regression coverage for issue #122: the QQ Music API sidecar must listen on
+// the same port the client base URL targets (config.qqMusicApiPort). A stale
+// build once bound 3300 while the client requested 3200, silently breaking the
+// QQ login QR / search flow with ECONNREFUSED on 127.0.0.1:3200.
+describe("createApiServerManager — QQ sidecar port binding", () => {
+  const noopLogger = {
+    info() {},
+    warn() {},
+    error() {},
+    debug() {},
+    trace() {},
+    fatal() {},
+  } as unknown as Logger;
+
+  beforeEach(() => {
+    mockState.listenCalls = [];
+  });
+
+  it("listens on the configured qqMusicPort and exposes a matching base URL", async () => {
+    const port = 39217; // uncommon port to avoid clashing with a real instance
+    const manager = createApiServerManager(
+      { neteasePort: 39218, qqMusicPort: port, neteaseEnabled: false, qqEnabled: true },
+      noopLogger
+    );
+    await manager.start();
+    manager.stop();
+
+    expect(manager.getQQMusicBaseUrl()).toBe(`http://127.0.0.1:${port}`);
+    expect(mockState.listenCalls).toEqual([{ port, host: "127.0.0.1" }]);
+  });
+
+  it("follows qqMusicPort — not an injected PORT — and restores PORT afterwards", async () => {
+    const port = 39219;
+    const previous = process.env.PORT;
+    // Simulate a hosting platform / compose file injecting a stray PORT that
+    // must NOT leak into the QQ sidecar's chosen port.
+    process.env.PORT = "39999";
+    const manager = createApiServerManager(
+      { neteasePort: 39220, qqMusicPort: port, neteaseEnabled: false, qqEnabled: true },
+      noopLogger
+    );
+    try {
+      await manager.start();
+      // The sidecar follows qqMusicPort, never the injected PORT.
+      expect(mockState.listenCalls).toEqual([{ port, host: "127.0.0.1" }]);
+      // The injected PORT is restored so nothing else in the process is affected.
+      expect(process.env.PORT).toBe("39999");
+    } finally {
+      manager.stop();
+      if (previous === undefined) delete process.env.PORT;
+      else process.env.PORT = previous;
+    }
+  });
+
+  it("leaves an absent PORT env unset after importing the sidecar", async () => {
+    const port = 39221;
+    const previous = process.env.PORT;
+    delete process.env.PORT;
+    const manager = createApiServerManager(
+      { neteasePort: 39222, qqMusicPort: port, neteaseEnabled: false, qqEnabled: true },
+      noopLogger
+    );
+    try {
+      await manager.start();
+      // Was unset before importing — must be unset again, no leaked override.
+      expect(process.env.PORT).toBeUndefined();
+    } finally {
+      manager.stop();
+      if (previous === undefined) delete process.env.PORT;
+      else process.env.PORT = previous;
+    }
+  });
+});

src/music/api-server.ts

@@ -5,6 +5,10 @@ import type { Server } from "node:http";
 export interface ApiServerOptions {
   neteasePort: number;
   qqMusicPort: number;
+  /** Provider gating (#enabledProviders): when false, the corresponding
+   *  embedded sidecar API server is never started and its port never bound. */
+  neteaseEnabled?: boolean;
+  qqEnabled?: boolean;
 }
 
 export interface ApiServerManager {
@@ -65,34 +69,43 @@ export function createApiServerManager(
 
   return {
     async start(): Promise<void> {
+      // Provider gating: with the jellyfin-only default config neither legacy
+      // sidecar starts, so ports 3001/3200 are never opened.
+      if (options.neteaseEnabled === false && options.qqEnabled === false) {
+        logger.info("NetEase/QQ providers disabled — embedded music API servers not started");
+        return;
+      }
       logger.info("Starting embedded music API servers...");
 
       // Start NetEase Cloud Music API
-      try {
+      if (options.neteaseEnabled !== false) {
-        const portFree = await isPortFree(options.neteasePort);
+        try {
-        if (!portFree) {
+          const portFree = await isPortFree(options.neteasePort);
-          logger.info(
+          if (!portFree) {
-            { port: options.neteasePort },
+            logger.info(
-            "NetEase API port already in use — reusing existing instance"
+              { port: options.neteasePort },
-          );
+              "NetEase API port already in use — reusing existing instance"
-        } else {
+            );
-          const ncmModule = await import("NeteaseCloudMusicApi") as any;
+          } else {
-          const serverObj = ncmModule.server ?? ncmModule.default?.server;
+            const ncmModule = await import("NeteaseCloudMusicApi") as any;
-          const app = await serverObj.serveNcmApi({ port: options.neteasePort });
+            const serverObj = ncmModule.server ?? ncmModule.default?.server;
-          neteaseServer = app;
+            const app = await serverObj.serveNcmApi({ port: options.neteasePort });
-          logger.info(
+            neteaseServer = app;
-            { port: options.neteasePort },
+            logger.info(
-            "NetEase Cloud Music API started"
+              { port: options.neteasePort },
-          );
+              "NetEase Cloud Music API started"
+            );
+          }
+        } catch (err) {
+          logger.error({ err }, "Failed to start NetEase Cloud Music API");
         }
-      } catch (err) {
-        logger.error({ err }, "Failed to start NetEase Cloud Music API");
       }
 
       // Start QQ Music API. Older versions auto-started on import; the
       // current fork (2.2.11+) only listens when run as `require.main`,
       // so we explicitly call .listen() on the imported Koa app and keep
       // the server handle for clean shutdown.
+      if (options.qqEnabled === false) return;
       try {
         const portFree = await isPortFree(options.qqMusicPort);
         if (!portFree) {
@@ -101,7 +114,25 @@ export function createApiServerManager(
             "QQ Music API port already in use — reusing existing instance"
           );
         } else {
-          const qqModule = (await import("@sansenjian/qq-music-api")) as any;
+          // Pin the upstream server to the configured port before importing.
+          // The package derives its default port from process.env.PORT (falling
+          // back to 3200) and, in some historical versions, auto-started that
+          // server as an import side effect. Aligning PORT with qqMusicApiPort
+          // guarantees the sidecar can never bind a different port than the one
+          // the client base URL (getQQMusicBaseUrl) targets — the root cause of
+          // issue #122, where an old build listened on 3300 while the client
+          // requested 3200. Restore the previous value right after import so we
+          // never leak the override into the rest of the process (e.g. the web
+          // server or the NetEase sidecar, which also read PORT as a fallback).
+          const prevPortEnv = process.env.PORT;
+          process.env.PORT = String(options.qqMusicPort);
+          let qqModule: any;
+          try {
+            qqModule = (await import("@sansenjian/qq-music-api")) as any;
+          } finally {
+            if (prevPortEnv === undefined) delete process.env.PORT;
+            else process.env.PORT = prevPortEnv;
+          }
           // The module's export structure varies between versions:
           //   2.2.11+: default → Koa app (has .listen)
           //   2.2.10:  default → wrapper object whose .default is the Koa app
@@ -111,16 +142,34 @@ export function createApiServerManager(
             ? candidate
             : candidate.default ?? null;
           if (koaApp && typeof koaApp.listen === "function") {
-            qqMusicServer = await new Promise<Server>((resolve, reject) => {
+            // A version that auto-started on import has already bound the
-              const srv = koaApp.listen(options.qqMusicPort, "127.0.0.1", () =>
+            // configured port (thanks to the PORT alignment above); reuse it
-                resolve(srv)
+            // rather than racing a second listen that would fail EADDRINUSE.
+            const stillFree = await isPortFree(options.qqMusicPort);
+            if (!stillFree) {
+              logger.info(
+                { port: options.qqMusicPort },
+                "QQ Music API already listening on the configured port (auto-started on import) — reusing embedded instance"
               );
-              srv.on("error", reject);
+            } else {
-            });
+              qqMusicServer = await new Promise<Server>((resolve, reject) => {
-            logger.info(
+                const srv = koaApp.listen(options.qqMusicPort, "127.0.0.1", () =>
-              { port: options.qqMusicPort },
+                  resolve(srv)
-              "QQ Music API started"
+                );
-            );
+                srv.on("error", reject);
+              });
+              // Log the port actually bound (read from the socket) rather than
+              // the requested one, so operators can spot a mismatch in the logs.
+              const addr = qqMusicServer.address();
+              const boundPort =
+                addr && typeof addr === "object" && addr !== null
+                  ? addr.port
+                  : options.qqMusicPort;
+              logger.info(
+                { port: boundPort },
+                "QQ Music API started"
+              );
+            }
           } else {
             logger.warn("QQ Music API module does not expose a Koa app");
           }

src/music/auth.ts

@@ -1,9 +1,13 @@
 import fs from "node:fs";
 import path from "node:path";
 
+/** Platforms with a persisted credential blob. For jellyfin the "cookie" is a
+ *  JSON string carrying the access token / userId / deviceId (see jellyfin.ts). */
+type CookiePlatform = "netease" | "qq" | "bilibili" | "kugou" | "jellyfin";
+
 export interface CookieStore {
-  save(platform: "netease" | "qq" | "bilibili" | "kugou", cookie: string): void;
+  save(platform: CookiePlatform, cookie: string): void;
-  load(platform: "netease" | "qq" | "bilibili" | "kugou"): string;
+  load(platform: CookiePlatform): string;
 }
 
 export function createCookieStore(cookieDir: string): CookieStore {
@@ -12,7 +16,7 @@ export function createCookieStore(cookieDir: string): CookieStore {
   }
 
   return {
-    save(platform: "netease" | "qq" | "bilibili" | "kugou", cookie: string): void {
+    save(platform: CookiePlatform, cookie: string): void {
       const filePath = path.join(cookieDir, `${platform}.json`);
       fs.writeFileSync(
         filePath,
@@ -21,7 +25,7 @@ export function createCookieStore(cookieDir: string): CookieStore {
       );
     },
 
-    load(platform: "netease" | "qq" | "bilibili" | "kugou"): string {
+    load(platform: CookiePlatform): string {
       const filePath = path.join(cookieDir, `${platform}.json`);
       if (!fs.existsSync(filePath)) return "";
       try {

src/music/jellyfin.test.ts

@@ -0,0 +1,386 @@
+import { describe, it, expect, vi } from "vitest";
+import {
+  ticksToSeconds,
+  TICKS_PER_SECOND,
+  buildCoverUrl,
+  buildStreamUrl,
+  buildUniversalUrl,
+  mapJellyfinSong,
+  mapJellyfinAlbum,
+  mapJellyfinPlaylist,
+  mapJellyfinLyrics,
+  describeJellyfinError,
+  JELLYFIN_QUALITY_LEVELS,
+  JellyfinProvider,
+} from "./jellyfin.js";
+import type { JellyfinConfig } from "../data/config.js";
+
+function cfg(partial: Partial<JellyfinConfig> = {}): JellyfinConfig {
+  return {
+    serverUrl: "https://jf.example.com",
+    authMode: "apikey",
+    username: "",
+    password: "",
+    apiKey: "KEY",
+    userId: "user-1",
+    ...partial,
+  };
+}
+
+/** Provider with a mocked axios instance; returns the request spy. */
+function mockProvider(config = cfg(), responder?: (req: any) => any) {
+  const p = new JellyfinProvider();
+  p.configure(config);
+  const request = vi.fn(async (req: any) => ({
+    data: responder ? responder(req) : { Items: [] },
+  }));
+  (p as any).api = { request, post: vi.fn() };
+  return { p, request };
+}
+
+describe("Jellyfin mapping helpers", () => {
+  it("converts ticks to seconds (1 tick = 100ns)", () => {
+    expect(ticksToSeconds(TICKS_PER_SECOND)).toBe(1);
+    expect(ticksToSeconds(2_275_000_000)).toBeCloseTo(227.5, 3);
+    expect(ticksToSeconds(undefined)).toBe(0);
+    expect(ticksToSeconds(NaN)).toBe(0);
+  });
+
+  it("maps a Jellyfin audio item to Song (GUID id stays a string)", () => {
+    const song = mapJellyfinSong(
+      {
+        Id: "3fa85f6457174562b3fc2c963f66afa6",
+        Name: "Track",
+        Artists: ["A", "B"],
+        AlbumArtist: "A",
+        Album: "The Album",
+        RunTimeTicks: 1_855_000_000,
+      },
+      "https://jf/x.jpg",
+    );
+    expect(song).toEqual({
+      id: "3fa85f6457174562b3fc2c963f66afa6",
+      name: "Track",
+      artist: "A / B",
+      album: "The Album",
+      duration: 186, // 185.5s rounded
+      coverUrl: "https://jf/x.jpg",
+      platform: "jellyfin",
+    });
+  });
+
+  it("falls back to AlbumArtist when Artists is empty", () => {
+    const song = mapJellyfinSong({ Id: "1", Artists: [], AlbumArtist: "Solo" }, "");
+    expect(song.artist).toBe("Solo");
+  });
+
+  it("maps albums and playlists with ChildCount", () => {
+    const album = mapJellyfinAlbum(
+      { Id: "a1", Name: "LP", AlbumArtist: "X", ChildCount: 10 },
+      "c",
+    );
+    expect(album).toMatchObject({ id: "a1", artist: "X", songCount: 10, platform: "jellyfin" });
+    const pl = mapJellyfinPlaylist({ Id: "p1", Name: "Mix", ChildCount: 7 }, "c");
+    expect(pl).toMatchObject({ id: "p1", songCount: 7, platform: "jellyfin" });
+  });
+
+  it("cover URL prefers the item's Primary image, falls back to the album's", () => {
+    const own = buildCoverUrl("https://jf", "K", {
+      Id: "i1",
+      ImageTags: { Primary: "tag1" },
+      AlbumId: "a1",
+      AlbumPrimaryImageTag: "tag2",
+    });
+    expect(own).toBe("https://jf/Items/i1/Images/Primary?maxWidth=512&tag=tag1&api_key=K");
+    const album = buildCoverUrl("https://jf", "K", {
+      Id: "i1",
+      AlbumId: "a1",
+      AlbumPrimaryImageTag: "tag2",
+    });
+    expect(album).toBe("https://jf/Items/a1/Images/Primary?maxWidth=512&tag=tag2&api_key=K");
+    expect(buildCoverUrl("https://jf", "K", { Id: "i1" })).toBe("");
+  });
+
+  it("builds direct and transcoded stream URLs", () => {
+    expect(buildStreamUrl("https://jf", "K", "i1")).toBe(
+      "https://jf/Audio/i1/stream?static=true&api_key=K",
+    );
+    const url = buildUniversalUrl("https://jf", {
+      apiKey: "K",
+      userId: "u",
+      deviceId: "d",
+      itemId: "i1",
+      kbps: 320,
+    });
+    expect(url).toContain("https://jf/Audio/i1/universal?");
+    expect(url).toContain("maxStreamingBitrate=320000");
+    expect(url).toContain("transcodingContainer=mp3");
+    expect(url).toContain("transcodingProtocol=http");
+    // The container list must be URL-encoded ("|" → %7C)
+    expect(url).toContain("container=mp3%2Caac%2Cm4a%7Caac%2Cflac%2Cwebma%2Cwebm%2Cwav%2Cogg");
+  });
+
+  it("maps lyrics with tick offsets; entries without Start collapse to 0; empty text dropped", () => {
+    const lines = mapJellyfinLyrics({
+      Lyrics: [
+        { Text: "line two", Start: 125_000_000 },
+        { Text: "line one", Start: 5_000_000 },
+        { Text: "   ", Start: 1 },
+        { Text: "untimed" },
+      ],
+    });
+    expect(lines).toEqual([
+      { time: 0, text: "untimed" },
+      { time: 0.5, text: "line one" },
+      { time: 12.5, text: "line two" },
+    ]);
+  });
+
+  it("mapJellyfinLyrics tolerates junk payloads", () => {
+    expect(mapJellyfinLyrics(null)).toEqual([]);
+    expect(mapJellyfinLyrics({})).toEqual([]);
+    expect(mapJellyfinLyrics({ Lyrics: "nope" })).toEqual([]);
+  });
+
+  it("describes common connection errors in a friendly way", () => {
+    expect(describeJellyfinError({ response: { status: 401 } })).toContain("401");
+    expect(describeJellyfinError({ code: "ECONNREFUSED" })).toContain("无法连接");
+    expect(describeJellyfinError(new Error("boom"))).toBe("boom");
+  });
+});
+
+describe("JellyfinProvider", () => {
+  it("quality: defaults to direct, ignores foreign (NetEase) values", () => {
+    const p = new JellyfinProvider();
+    expect(p.getQuality()).toBe("direct");
+    p.setQuality("exhigh"); // NetEase value from the legacy platform-less broadcast
+    expect(p.getQuality()).toBe("direct");
+    p.setQuality("320");
+    expect(p.getQuality()).toBe("320");
+    expect(JELLYFIN_QUALITY_LEVELS[0].value).toBe("direct");
+  });
+
+  it("getSongUrl: direct tier → static stream; 320 tier → universal transcode", async () => {
+    const { p } = mockProvider();
+    p.setCookie(JSON.stringify({ deviceId: "dev-1" }));
+    const direct = await p.getSongUrl("item1");
+    expect(direct?.url).toBe("https://jf.example.com/Audio/item1/stream?static=true&api_key=KEY");
+
+    p.setQuality("320");
+    const transcoded = await p.getSongUrl("item1");
+    expect(transcoded?.url).toContain("/Audio/item1/universal?");
+    expect(transcoded?.url).toContain("maxStreamingBitrate=320000");
+    expect(transcoded?.url).toContain("api_key=KEY");
+  });
+
+  it("search hits /Items for Audio, MusicAlbum and Playlist with paging", async () => {
+    const { p, request } = mockProvider();
+    await p.search("mozart", 30, 60);
+    const types = request.mock.calls.map((c) => c[0].params?.IncludeItemTypes);
+    expect(types).toContain("Audio");
+    expect(types).toContain("MusicAlbum");
+    expect(types).toContain("Playlist");
+    for (const call of request.mock.calls) {
+      expect(call[0].params.Limit).toBe(30);
+      expect(call[0].params.StartIndex).toBe(60);
+      expect(call[0].params.userId).toBe("user-1");
+      expect(call[0].headers["X-Emby-Token"]).toBe("KEY");
+    }
+  });
+
+  it("userpass: authenticates once via AuthenticateByName, persists token, retries once on 401", async () => {
+    const p = new JellyfinProvider();
+    p.configure(cfg({ authMode: "userpass", username: "eric", password: "pw", apiKey: "", userId: "" }));
+    const persisted: string[] = [];
+    p.setPersist((s) => persisted.push(s));
+
+    let tokenCounter = 0;
+    const post = vi.fn(async (..._args: any[]) => ({
+      data: { AccessToken: `tok-${++tokenCounter}`, User: { Id: "u9" } },
+    }));
+    // First data request 401s (expired token), the retry succeeds.
+    let dataCalls = 0;
+    const request = vi.fn(async (req: any) => {
+      dataCalls++;
+      if (dataCalls === 1) {
+        const err: any = new Error("Unauthorized");
+        err.response = { status: 401 };
+        throw err;
+      }
+      return { data: { Items: [{ Id: "s1", Name: "N" }] }, config: req };
+    });
+    (p as any).api = { request, post };
+
+    const songs = await p.getPlaylistSongs("pl1");
+    expect(songs).toHaveLength(1);
+    // login ran twice: initial auth + re-auth after the 401
+    expect(post).toHaveBeenCalledTimes(2);
+    const authHeader = post.mock.calls[0][2].headers.Authorization as string;
+    expect(authHeader).toContain('MediaBrowser Client="TSMusicBot"');
+    expect(authHeader).toContain("DeviceId=");
+    expect(post.mock.calls[0][1]).toEqual({ Username: "eric", Pw: "pw" });
+    // token + userId + deviceId persisted like cookies
+    const last = JSON.parse(persisted[persisted.length - 1]);
+    expect(last.accessToken).toBe("tok-2");
+    expect(last.userId).toBe("u9");
+    expect(last.deviceId).toBeTruthy();
+  });
+
+  it("userpass: surfaces the error when the retry also 401s (single retry only)", async () => {
+    const p = new JellyfinProvider();
+    p.configure(cfg({ authMode: "userpass", username: "eric", password: "bad", apiKey: "" }));
+    const post = vi.fn(async () => ({ data: { AccessToken: "t", User: { Id: "u" } } }));
+    const err: any = new Error("Unauthorized");
+    err.response = { status: 401 };
+    const request = vi.fn(async () => {
+      throw err;
+    });
+    (p as any).api = { request, post };
+    await expect(p.getPlaylistSongs("pl1")).rejects.toThrow("Unauthorized");
+    expect(request).toHaveBeenCalledTimes(2); // original + exactly one retry
+  });
+
+  it("setCookie/getCookie round-trip restores token, userId and deviceId", () => {
+    const p = new JellyfinProvider();
+    p.setCookie(JSON.stringify({ accessToken: "T", userId: "U", deviceId: "D" }));
+    expect(JSON.parse(p.getCookie())).toEqual({ accessToken: "T", userId: "U", deviceId: "D" });
+    p.setCookie("not json"); // junk must not corrupt state
+    expect(JSON.parse(p.getCookie())).toEqual({ accessToken: "T", userId: "U", deviceId: "D" });
+  });
+
+  it("getLyrics: 404 means no lyrics (empty), other errors surface", async () => {
+    const notFound: any = new Error("nf");
+    notFound.response = { status: 404 };
+    const { p } = mockProvider(cfg(), () => {
+      throw notFound;
+    });
+    expect(await p.getLyrics("i1")).toEqual([]);
+
+    const boom: any = new Error("server down");
+    boom.response = { status: 500 };
+    const { p: p2 } = mockProvider(cfg(), () => {
+      throw boom;
+    });
+    await expect(p2.getLyrics("i1")).rejects.toThrow("server down");
+  });
+
+  it("getAuthStatus reflects /System/Info reachability; unconfigured = logged out", async () => {
+    const blank = new JellyfinProvider();
+    expect(await blank.getAuthStatus()).toEqual({ loggedIn: false });
+
+    const { p } = mockProvider(cfg(), () => ({ ServerName: "NAS" }));
+    expect(await p.getAuthStatus()).toEqual({ loggedIn: true, nickname: "API Key@NAS" });
+
+    const { p: down } = mockProvider(cfg(), () => {
+      throw new Error("ECONNREFUSED");
+    });
+    expect(await down.getAuthStatus()).toEqual({ loggedIn: false });
+  });
+
+  it("getPersonalFm seeds InstantMix from a random favorite", async () => {
+    const { p, request } = mockProvider(cfg(), (req: any) => {
+      if (req.url.includes("/InstantMix")) {
+        return { Items: [{ Id: "m1", Name: "Mixed" }] };
+      }
+      if (req.params?.Filters === "IsFavorite") {
+        return { Items: [{ Id: "fav1", Name: "Fav" }] };
+      }
+      return { Items: [] };
+    });
+    const songs = await p.getPersonalFm();
+    expect(songs.map((s) => s.id)).toEqual(["m1"]);
+    const mixCall = request.mock.calls.find((c) => c[0].url.includes("/InstantMix"));
+    expect(mixCall![0].url).toContain("/Items/fav1/InstantMix");
+  });
+
+  it("getPersonalFm falls back: favorites → recently played → random", async () => {
+    const { p, request } = mockProvider(cfg(), (req: any) => {
+      if (req.url.includes("/InstantMix")) return { Items: [{ Id: "m2" }] };
+      if (req.params?.Filters === "IsFavorite") return { Items: [] };
+      if (req.params?.Filters === "IsPlayed") return { Items: [{ Id: "recent1" }] };
+      return { Items: [] };
+    });
+    const songs = await p.getPersonalFm();
+    expect(songs.map((s) => s.id)).toEqual(["m2"]);
+    const mixCall = request.mock.calls.find((c) => c[0].url.includes("/InstantMix"));
+    expect(mixCall![0].url).toContain("/Items/recent1/InstantMix");
+  });
+
+  it("playback reporter posts start/progress/stopped with PositionTicks", async () => {
+    const bodies: { url: string; data: any }[] = [];
+    const { p } = mockProvider(cfg(), () => ({}));
+    ((p as any).api.request as ReturnType<typeof vi.fn>).mockImplementation(
+      async (req: any) => {
+        bodies.push({ url: req.url, data: req.data });
+        return { data: {} };
+      },
+    );
+
+    const reporter = p.createPlaybackReporter();
+    reporter.onTrackStart("song1");
+    reporter.onTick("song1", 90.5, false);
+    reporter.onStop();
+    await vi.waitFor(() => expect(bodies).toHaveLength(3));
+
+    expect(bodies[0].url).toContain("/Sessions/Playing");
+    expect(bodies[0].data.ItemId).toBe("song1");
+    const sessionId = bodies[0].data.PlaySessionId;
+    expect(sessionId).toBeTruthy();
+
+    expect(bodies[1].url).toContain("/Sessions/Playing/Progress");
+    expect(bodies[1].data.PositionTicks).toBe(905_000_000);
+    expect(bodies[1].data.PlaySessionId).toBe(sessionId);
+
+    // Stop carries the LAST reported position so a natural track end counts as played.
+    expect(bodies[2].url).toContain("/Sessions/Playing/Stopped");
+    expect(bodies[2].data.PositionTicks).toBe(905_000_000);
+  });
+
+  it("reporter: a new track start closes the previous session; failures are swallowed", async () => {
+    const bodies: { url: string; data: any }[] = [];
+    const { p } = mockProvider(cfg(), () => ({}));
+    ((p as any).api.request as ReturnType<typeof vi.fn>).mockImplementation(
+      async (req: any) => {
+        bodies.push({ url: req.url, data: req.data });
+        if (req.url.includes("/Sessions")) throw new Error("reporting endpoint down");
+        return { data: {} };
+      },
+    );
+
+    const reporter = p.createPlaybackReporter();
+    reporter.onTrackStart("a");
+    reporter.onTick("a", 200, false);
+    reporter.onTrackStart("b"); // must post Stopped for "a" at pos 200, then Playing for "b"
+    reporter.onStop();
+    await vi.waitFor(() => expect(bodies.length).toBeGreaterThanOrEqual(5));
+
+    const stopped = bodies.filter((b) => b.url.includes("/Stopped"));
+    expect(stopped[0].data.ItemId).toBe("a");
+    expect(stopped[0].data.PositionTicks).toBe(2_000_000_000);
+    expect(stopped[1].data.ItemId).toBe("b");
+    // ticks for stale items are ignored
+    reporter.onTick("a", 999, false);
+    expect(bodies.filter((b) => b.url.includes("/Progress"))).toHaveLength(1);
+  });
+
+  it("testConnection reports server info on success and friendly errors on failure", async () => {
+    const { p } = mockProvider(cfg(), () => ({ ServerName: "NAS", Version: "10.9.11" }));
+    expect(await p.testConnection()).toEqual({ ok: true, serverName: "NAS", version: "10.9.11" });
+
+    const bad = new JellyfinProvider();
+    bad.configure(cfg({ apiKey: "", userId: "" }));
+    const res = await bad.testConnection();
+    expect(res.ok).toBe(false);
+    expect(res.error).toContain("apiKey");
+  });
+
+  it("configure drops the cached token when credentials change, keeps deviceId", () => {
+    const p = new JellyfinProvider();
+    p.configure(cfg());
+    p.setCookie(JSON.stringify({ accessToken: "T", userId: "U", deviceId: "D" }));
+    p.configure(cfg({ serverUrl: "https://other.example.com" }));
+    const state = JSON.parse(p.getCookie());
+    expect(state.accessToken).toBe("");
+    expect(state.deviceId).toBe("D");
+  });
+});

src/music/jellyfin.ts

@@ -0,0 +1,741 @@
+import { readFileSync } from "node:fs";
+import { dirname, join } from "node:path";
+import { fileURLToPath } from "node:url";
+import crypto from "node:crypto";
+import axios, { type AxiosError, type AxiosInstance } from "axios";
+import type { JellyfinConfig } from "../data/config.js";
+import type { Logger } from "../logger.js";
+import type {
+  MusicProvider,
+  Song,
+  SongUrlResult,
+  Playlist,
+  PlaylistDetail,
+  LyricLine,
+  SearchResult,
+  QrCodeResult,
+  AuthStatus,
+  Album,
+} from "./provider.js";
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+
+/** 1 tick = 100 ns → 10,000,000 ticks = 1 second (Jellyfin RunTimeTicks / lyric Start). */
+export const TICKS_PER_SECOND = 10_000_000;
+
+export function ticksToSeconds(ticks: number | null | undefined): number {
+  if (typeof ticks !== "number" || !Number.isFinite(ticks)) return 0;
+  return ticks / TICKS_PER_SECOND;
+}
+
+const CLIENT_NAME = "TSMusicBot";
+
+/** Best-effort package version for the MediaBrowser auth header. */
+const PKG_VERSION = (() => {
+  try {
+    const pkg = JSON.parse(
+      readFileSync(join(__dirname, "..", "..", "package.json"), "utf-8"),
+    ) as { version?: string };
+    return pkg.version ?? "0.0.0";
+  } catch {
+    return "0.0.0";
+  }
+})();
+
+// Jellyfin quality tiers replace the NetEase labels for this source. "direct"
+// (default) streams the original file — the bot re-encodes to Opus anyway, so
+// this is max quality. The transcode tiers exist for remote/low-bandwidth
+// Jellyfin servers.
+export const JELLYFIN_QUALITY_LEVELS = [
+  { value: "direct", label: "原始直传 Direct", bitrate: 0 },
+  { value: "320", label: "320kbps 转码", bitrate: 320 },
+  { value: "192", label: "192kbps 转码", bitrate: 192 },
+  { value: "128", label: "128kbps 转码", bitrate: 128 },
+] as const;
+
+/** Subset of Jellyfin's BaseItemDto that this provider consumes. */
+export interface JellyfinItem {
+  Id: string;
+  Name?: string;
+  Artists?: string[];
+  AlbumArtist?: string;
+  Album?: string;
+  AlbumId?: string;
+  AlbumPrimaryImageTag?: string;
+  RunTimeTicks?: number;
+  ImageTags?: { Primary?: string };
+  ChildCount?: number;
+  SongCount?: number;
+  Overview?: string;
+}
+
+/**
+ * Primary cover art URL for an item; falls back to the parent album's primary
+ * image (AlbumPrimaryImageTag) and finally to "" (the UI renders a placeholder
+ * for missing art). The api_key query param authenticates browser <img> loads
+ * and the TS-avatar download alike.
+ */
+export function buildCoverUrl(baseUrl: string, apiKey: string, item: JellyfinItem): string {
+  if (!baseUrl) return "";
+  const key = apiKey ? `&api_key=${encodeURIComponent(apiKey)}` : "";
+  if (item.ImageTags?.Primary) {
+    return `${baseUrl}/Items/${item.Id}/Images/Primary?maxWidth=512&tag=${item.ImageTags.Primary}${key}`;
+  }
+  if (item.AlbumId && item.AlbumPrimaryImageTag) {
+    return `${baseUrl}/Items/${item.AlbumId}/Images/Primary?maxWidth=512&tag=${item.AlbumPrimaryImageTag}${key}`;
+  }
+  return "";
+}
+
+/** Direct (untranscoded) stream URL — the default playback path. */
+export function buildStreamUrl(baseUrl: string, apiKey: string, itemId: string): string {
+  const params = new URLSearchParams({ static: "true", api_key: apiKey });
+  return `${baseUrl}/Audio/${itemId}/stream?${params.toString()}`;
+}
+
+/** Server-side transcode URL for the 320/192/128 kbps tiers. */
+export function buildUniversalUrl(
+  baseUrl: string,
+  o: { apiKey: string; userId: string; deviceId: string; itemId: string; kbps: number },
+): string {
+  const params = new URLSearchParams({
+    userId: o.userId,
+    deviceId: o.deviceId,
+    api_key: o.apiKey,
+    maxStreamingBitrate: String(o.kbps * 1000),
+    container: "mp3,aac,m4a|aac,flac,webma,webm,wav,ogg",
+    transcodingContainer: "mp3",
+    transcodingProtocol: "http",
+  });
+  return `${baseUrl}/Audio/${o.itemId}/universal?${params.toString()}`;
+}
+
+export function mapJellyfinSong(item: JellyfinItem, coverUrl: string): Song {
+  return {
+    id: String(item.Id),
+    name: item.Name ?? "",
+    artist: (item.Artists?.length ? item.Artists : [item.AlbumArtist ?? ""])
+      .filter(Boolean)
+      .join(" / "),
+    album: item.Album ?? "",
+    duration: Math.round(ticksToSeconds(item.RunTimeTicks)),
+    coverUrl,
+    platform: "jellyfin",
+  };
+}
+
+export function mapJellyfinAlbum(item: JellyfinItem, coverUrl: string): Album {
+  return {
+    id: String(item.Id),
+    name: item.Name ?? "",
+    artist: item.AlbumArtist ?? (item.Artists ?? []).join(" / "),
+    coverUrl,
+    songCount: item.ChildCount ?? item.SongCount ?? 0,
+    platform: "jellyfin",
+  };
+}
+
+export function mapJellyfinPlaylist(item: JellyfinItem, coverUrl: string): Playlist {
+  return {
+    id: String(item.Id),
+    name: item.Name ?? "",
+    coverUrl,
+    songCount: item.ChildCount ?? item.SongCount ?? 0,
+    platform: "jellyfin",
+  };
+}
+
+/**
+ * Map `GET /Audio/{id}/Lyrics` → the bot's synced-lyric format. `Start` is in
+ * ticks; entries without Start (plain-text lyrics) collapse to time 0 so the
+ * lyric view still renders them, just without sync. Translation stays empty —
+ * Jellyfin has no translated-lyrics concept.
+ */
+export function mapJellyfinLyrics(payload: unknown): LyricLine[] {
+  const lyrics = (payload as { Lyrics?: { Text?: string; Start?: number }[] })?.Lyrics;
+  if (!Array.isArray(lyrics)) return [];
+  return lyrics
+    .filter((l) => typeof l?.Text === "string" && l.Text.trim() !== "")
+    .map((l) => ({ time: ticksToSeconds(l.Start), text: l.Text!.trim() }))
+    .sort((a, b) => a.time - b.time);
+}
+
+/** Operator-friendly connection/auth error description (test-connection UI + logs). */
+export function describeJellyfinError(err: unknown): string {
+  const e = err as AxiosError;
+  if (e?.response) {
+    const s = e.response.status;
+    if (s === 401) return "认证失败：用户名/密码或 API Key 不正确 (401 Unauthorized)";
+    if (s === 403) return "该账号没有访问权限 (403 Forbidden)";
+    if (s === 404) return "接口不存在——请确认地址指向 Jellyfin 根路径 (404 Not Found)";
+    return `Jellyfin 返回 HTTP ${s}`;
+  }
+  const code = (e as { code?: string })?.code;
+  if (code === "ECONNREFUSED") return "无法连接 Jellyfin 服务器 (connection refused)";
+  if (code === "ENOTFOUND" || code === "EAI_AGAIN") return "无法解析服务器地址 (DNS lookup failed)";
+  if (code === "ETIMEDOUT" || code === "ECONNABORTED") return "连接 Jellyfin 超时 (timeout)";
+  return (err as Error)?.message ?? String(err);
+}
+
+/**
+ * Per-bot playback reporting handle. One playback session (PlaySessionId) per
+ * track start; the previous session is closed with its last known position so
+ * Jellyfin's played/PlayCount bookkeeping sees natural track ends as ~complete
+ * plays and mid-track skips as partial ones. Every call is fire-and-forget —
+ * reporting must never affect playback.
+ */
+export interface JellyfinPlaybackReporter {
+  onTrackStart(itemId: string): void;
+  onTick(itemId: string, positionSec: number, paused: boolean): void;
+  onStop(): void;
+}
+
+interface PersistedAuth {
+  accessToken?: string;
+  userId?: string;
+  deviceId?: string;
+}
+
+function emptyConfig(): JellyfinConfig {
+  return { serverUrl: "", authMode: "userpass", username: "", password: "", apiKey: "", userId: "" };
+}
+
+export class JellyfinProvider implements MusicProvider {
+  readonly platform = "jellyfin" as const;
+  private api: AxiosInstance;
+  private cfg: JellyfinConfig = emptyConfig();
+  private token = "";
+  private userId = "";
+  private deviceId = "";
+  private quality: string = "direct";
+  private loginPromise: Promise<void> | null = null;
+  private persistFn: ((serialized: string) => void) | null = null;
+  private logger: Logger | null = null;
+
+  constructor(logger?: Logger) {
+    this.api = axios.create({ timeout: 10000 });
+    this.logger = logger ?? null;
+  }
+
+  /**
+   * Apply (or re-apply, on settings save) the admin-configured connection.
+   * Changing any credential-relevant field drops the cached token so the next
+   * request re-authenticates; the stable deviceId survives reconfiguration.
+   */
+  configure(cfg: JellyfinConfig): void {
+    const prev = this.cfg;
+    this.cfg = { ...cfg, serverUrl: (cfg.serverUrl ?? "").trim().replace(/\/+$/, "") };
+    const credsChanged =
+      prev.serverUrl !== this.cfg.serverUrl ||
+      prev.authMode !== this.cfg.authMode ||
+      prev.username !== this.cfg.username ||
+      prev.password !== this.cfg.password ||
+      prev.apiKey !== this.cfg.apiKey ||
+      prev.userId !== this.cfg.userId;
+    if (credsChanged) {
+      this.token = "";
+      this.userId = "";
+    }
+  }
+
+  isConfigured(): boolean {
+    return this.cfg.serverUrl.length > 0;
+  }
+
+  /** Wire the on-disk persistence used after a successful login (cookie store). */
+  setPersist(fn: (serialized: string) => void): void {
+    this.persistFn = fn;
+  }
+
+  setQuality(quality: string): void {
+    // Ignore foreign values: the legacy platform-less POST /api/music/quality
+    // broadcasts NetEase levels to every provider, which must not clobber the
+    // jellyfin default ("direct").
+    if (JELLYFIN_QUALITY_LEVELS.some((l) => l.value === quality)) {
+      this.quality = quality;
+    }
+  }
+
+  getQuality(): string {
+    return this.quality;
+  }
+
+  // --- Auth ---
+
+  private authHeader(): string {
+    return (
+      `MediaBrowser Client="${CLIENT_NAME}", Device="${CLIENT_NAME}", ` +
+      `DeviceId="${this.deviceId}", Version="${PKG_VERSION}"`
+    );
+  }
+
+  private ensureDeviceId(): void {
+    if (!this.deviceId) {
+      this.deviceId = crypto.randomUUID();
+      this.persistState();
+    }
+  }
+
+  private persistState(): void {
+    try {
+      this.persistFn?.(this.getCookie());
+    } catch (err) {
+      this.logger?.warn({ err }, "Failed to persist Jellyfin auth state");
+    }
+  }
+
+  private async login(): Promise<void> {
+    this.ensureDeviceId();
+    const res = await this.api.post(
+      `${this.cfg.serverUrl}/Users/AuthenticateByName`,
+      { Username: this.cfg.username, Pw: this.cfg.password },
+      { headers: { Authorization: this.authHeader() } },
+    );
+    const token = res.data?.AccessToken as string | undefined;
+    const userId = res.data?.User?.Id as string | undefined;
+    if (!token || !userId) {
+      throw new Error("Jellyfin 登录响应缺少 AccessToken/User.Id");
+    }
+    this.token = token;
+    this.userId = userId;
+    this.persistState();
+    this.logger?.info({ userId }, "Jellyfin authenticated");
+  }
+
+  private async ensureAuth(): Promise<void> {
+    if (!this.cfg.serverUrl) {
+      throw new Error("Jellyfin 未配置服务器地址 (server URL not configured)");
+    }
+    if (this.cfg.authMode === "apikey") {
+      if (!this.cfg.apiKey || !this.cfg.userId) {
+        throw new Error("Jellyfin API Key 模式需要 apiKey 和 userId");
+      }
+      this.token = this.cfg.apiKey;
+      this.userId = this.cfg.userId;
+      this.ensureDeviceId();
+      return;
+    }
+    if (this.token && this.userId) return;
+    if (!this.cfg.username) {
+      throw new Error("Jellyfin 未配置用户名/密码 (username not configured)");
+    }
+    if (!this.loginPromise) {
+      this.loginPromise = this.login().finally(() => {
+        this.loginPromise = null;
+      });
+    }
+    return this.loginPromise;
+  }
+
+  /** Authenticated request with a single re-auth retry on 401 (userpass mode). */
+  private async request<T = unknown>(
+    method: "get" | "post",
+    path: string,
+    opts: { params?: Record<string, unknown>; data?: unknown; retried?: boolean } = {},
+  ): Promise<T> {
+    await this.ensureAuth();
+    // Callers snapshot `userId: this.userId` while building params, which is
+    // still empty before the first login. ensureAuth() has populated it by
+    // now, so backfill the stale-empty snapshot instead of sending userId="".
+    const params = opts.params ? { ...opts.params } : undefined;
+    if (params && "userId" in params && !params.userId) params.userId = this.userId;
+    try {
+      const res = await this.api.request<T>({
+        method,
+        url: this.cfg.serverUrl + path,
+        params,
+        data: opts.data,
+        headers: { "X-Emby-Token": this.token },
+      });
+      return res.data;
+    } catch (err) {
+      const status = (err as AxiosError).response?.status;
+      if (status === 401 && this.cfg.authMode === "userpass" && !opts.retried) {
+        this.token = "";
+        this.userId = "";
+        return this.request(method, path, { ...opts, retried: true });
+      }
+      throw err;
+    }
+  }
+
+  // --- MusicProvider ---
+
+  private coverFor(item: JellyfinItem): string {
+    return buildCoverUrl(this.cfg.serverUrl, this.token, item);
+  }
+
+  private mapSongs(items: JellyfinItem[] | undefined | null): Song[] {
+    return (items ?? []).map((i) => mapJellyfinSong(i, this.coverFor(i)));
+  }
+
+  async search(query: string, limit = 20, offset = 0): Promise<SearchResult> {
+    const common = {
+      searchTerm: query,
+      Recursive: true,
+      Limit: limit,
+      StartIndex: offset,
+      userId: this.userId,
+    };
+    const [songRes, albumRes, playlistRes] = await Promise.all([
+      this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+        params: { ...common, IncludeItemTypes: "Audio" },
+      }),
+      this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+        params: { ...common, IncludeItemTypes: "MusicAlbum", Fields: "ChildCount" },
+      }),
+      this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+        params: { ...common, IncludeItemTypes: "Playlist", Fields: "ChildCount" },
+      }),
+    ]);
+    return {
+      songs: this.mapSongs(songRes?.Items),
+      albums: (albumRes?.Items ?? []).map((i) => mapJellyfinAlbum(i, this.coverFor(i))),
+      playlists: (playlistRes?.Items ?? []).map((i) => mapJellyfinPlaylist(i, this.coverFor(i))),
+    };
+  }
+
+  async getSongUrl(songId: string, quality?: string): Promise<SongUrlResult | null> {
+    await this.ensureAuth();
+    const level = quality ?? this.quality;
+    const tier = JELLYFIN_QUALITY_LEVELS.find((l) => l.value === level);
+    if (!tier || tier.value === "direct") {
+      return { url: buildStreamUrl(this.cfg.serverUrl, this.token, songId) };
+    }
+    return {
+      url: buildUniversalUrl(this.cfg.serverUrl, {
+        apiKey: this.token,
+        userId: this.userId,
+        deviceId: this.deviceId,
+        itemId: songId,
+        kbps: tier.bitrate,
+      }),
+    };
+  }
+
+  async getSongDetail(songId: string): Promise<Song | null> {
+    const res = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: { ids: songId, userId: this.userId },
+    });
+    const item = res?.Items?.[0];
+    return item ? mapJellyfinSong(item, this.coverFor(item)) : null;
+  }
+
+  async getPlaylistSongs(playlistId: string): Promise<Song[]> {
+    const res = await this.request<{ Items?: JellyfinItem[] }>(
+      "get",
+      `/Playlists/${playlistId}/Items`,
+      { params: { userId: this.userId } },
+    );
+    return this.mapSongs(res?.Items);
+  }
+
+  async getAlbumSongs(albumId: string): Promise<Song[]> {
+    const res = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: {
+        parentId: albumId,
+        sortBy: "ParentIndexNumber,IndexNumber",
+        userId: this.userId,
+      },
+    });
+    return this.mapSongs(res?.Items);
+  }
+
+  async getRecommendPlaylists(): Promise<Playlist[]> {
+    return this.getUserPlaylists();
+  }
+
+  async getUserPlaylists(): Promise<Playlist[]> {
+    const res = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: {
+        IncludeItemTypes: "Playlist",
+        Recursive: true,
+        Fields: "ChildCount",
+        SortBy: "SortName",
+        userId: this.userId,
+      },
+    });
+    return (res?.Items ?? []).map((i) => mapJellyfinPlaylist(i, this.coverFor(i)));
+  }
+
+  async getPlaylistDetail(playlistId: string): Promise<PlaylistDetail | null> {
+    const res = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: { ids: playlistId, Fields: "ChildCount,Overview", userId: this.userId },
+    });
+    const item = res?.Items?.[0];
+    if (!item) return null;
+    return {
+      id: String(item.Id),
+      name: item.Name ?? "",
+      description: item.Overview ?? "",
+      coverUrl: this.coverFor(item),
+      songCount: item.ChildCount ?? 0,
+    };
+  }
+
+  async getLyrics(songId: string): Promise<LyricLine[]> {
+    try {
+      const res = await this.request<unknown>("get", `/Audio/${songId}/Lyrics`);
+      return mapJellyfinLyrics(res);
+    } catch (err) {
+      // 404 = the track simply has no lyrics — not an error.
+      if ((err as AxiosError).response?.status === 404) return [];
+      throw err;
+    }
+  }
+
+  // No QR-code login concept — connection is global and admin-configured.
+  async getQrCode(): Promise<QrCodeResult> {
+    return { qrUrl: "", key: "" };
+  }
+
+  async checkQrCodeStatus(): Promise<"waiting" | "scanned" | "confirmed" | "expired"> {
+    return "expired";
+  }
+
+  setCookie(cookie: string): void {
+    try {
+      const parsed = JSON.parse(cookie) as PersistedAuth;
+      if (parsed && typeof parsed === "object") {
+        if (typeof parsed.accessToken === "string") this.token = parsed.accessToken;
+        if (typeof parsed.userId === "string") this.userId = parsed.userId;
+        if (typeof parsed.deviceId === "string") this.deviceId = parsed.deviceId;
+      }
+    } catch {
+      // Not the JSON blob we persist — ignore rather than corrupt auth state.
+    }
+  }
+
+  getCookie(): string {
+    return JSON.stringify({
+      accessToken: this.token,
+      userId: this.userId,
+      deviceId: this.deviceId,
+    });
+  }
+
+  async getAuthStatus(): Promise<AuthStatus> {
+    if (!this.cfg.serverUrl) return { loggedIn: false };
+    try {
+      const info = await this.request<{ ServerName?: string }>("get", "/System/Info");
+      const who = this.cfg.authMode === "apikey" ? "API Key" : this.cfg.username;
+      return { loggedIn: true, nickname: `${who}@${info?.ServerName ?? "Jellyfin"}` };
+    } catch (err) {
+      this.logger?.debug({ err: describeJellyfinError(err) }, "Jellyfin auth status check failed");
+      return { loggedIn: false };
+    }
+  }
+
+  /**
+   * Authenticated round-trip to /System/Info for the Settings "test connection"
+   * button. `candidate` (when given) tests form values in a throwaway instance
+   * so a failed test never disturbs the live token state.
+   */
+  async testConnection(
+    candidate?: JellyfinConfig,
+  ): Promise<{ ok: boolean; serverName?: string; version?: string; error?: string }> {
+    const probe = candidate ? new JellyfinProvider() : this;
+    if (candidate) probe.configure(candidate);
+    try {
+      const info = await probe.request<{ ServerName?: string; Version?: string }>(
+        "get",
+        "/System/Info",
+      );
+      return { ok: true, serverName: info?.ServerName, version: info?.Version };
+    } catch (err) {
+      return { ok: false, error: describeJellyfinError(err) };
+    }
+  }
+
+  /**
+   * Personal FM = Instant Mix seeded from a random favorite, falling back to a
+   * random recently-played track, then a random library track. A final safety
+   * net returns 50 random tracks when Instant Mix itself yields nothing.
+   */
+  async getPersonalFm(): Promise<Song[]> {
+    const seed = await this.pickFmSeed();
+    if (seed) {
+      const mix = await this.request<{ Items?: JellyfinItem[] }>(
+        "get",
+        `/Items/${seed}/InstantMix`,
+        { params: { userId: this.userId, limit: 50 } },
+      );
+      const songs = this.mapSongs(mix?.Items);
+      if (songs.length > 0) return songs;
+    }
+    const random = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: {
+        IncludeItemTypes: "Audio",
+        Recursive: true,
+        SortBy: "Random",
+        Limit: 50,
+        userId: this.userId,
+      },
+    });
+    return this.mapSongs(random?.Items);
+  }
+
+  private async pickFmSeed(): Promise<string | null> {
+    const favorite = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: {
+        Filters: "IsFavorite",
+        IncludeItemTypes: "Audio",
+        Recursive: true,
+        SortBy: "Random",
+        Limit: 1,
+        userId: this.userId,
+      },
+    });
+    if (favorite?.Items?.[0]?.Id) return favorite.Items[0].Id;
+
+    const played = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: {
+        Filters: "IsPlayed",
+        IncludeItemTypes: "Audio",
+        Recursive: true,
+        SortBy: "DatePlayed",
+        SortOrder: "Descending",
+        Limit: 20,
+        userId: this.userId,
+      },
+    });
+    const playedItems = played?.Items ?? [];
+    if (playedItems.length > 0) {
+      return playedItems[Math.floor(Math.random() * playedItems.length)].Id;
+    }
+
+    const random = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: {
+        IncludeItemTypes: "Audio",
+        Recursive: true,
+        SortBy: "Random",
+        Limit: 1,
+        userId: this.userId,
+      },
+    });
+    return random?.Items?.[0]?.Id ?? null;
+  }
+
+  // --- Home sections ---
+
+  async getLatestAlbums(limit = 12): Promise<Album[]> {
+    await this.ensureAuth();
+    const items = await this.request<JellyfinItem[]>(
+      "get",
+      `/Users/${this.userId}/Items/Latest`,
+      { params: { IncludeItemTypes: "MusicAlbum", Limit: limit, Fields: "ChildCount" } },
+    );
+    return (Array.isArray(items) ? items : []).map((i) =>
+      mapJellyfinAlbum(i, this.coverFor(i)),
+    );
+  }
+
+  async getMostPlayed(limit = 12): Promise<Song[]> {
+    const res = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: {
+        SortBy: "PlayCount",
+        SortOrder: "Descending",
+        IncludeItemTypes: "Audio",
+        Recursive: true,
+        Filters: "IsPlayed",
+        Limit: limit,
+        userId: this.userId,
+      },
+    });
+    return this.mapSongs(res?.Items);
+  }
+
+  async getFavoriteSongs(limit = 100): Promise<Song[]> {
+    const res = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: {
+        Filters: "IsFavorite",
+        IncludeItemTypes: "Audio",
+        Recursive: true,
+        SortBy: "SortName",
+        Limit: limit,
+        userId: this.userId,
+      },
+    });
+    return this.mapSongs(res?.Items);
+  }
+
+  async getGenres(limit = 30): Promise<{ id: string; name: string }[]> {
+    const res = await this.request<{ Items?: JellyfinItem[] }>("get", "/MusicGenres", {
+      params: { userId: this.userId, Limit: limit, SortBy: "SortName" },
+    });
+    return (res?.Items ?? []).map((i) => ({ id: String(i.Id), name: i.Name ?? "" }));
+  }
+
+  async getGenreSongs(genreId: string, limit = 100): Promise<Song[]> {
+    const res = await this.request<{ Items?: JellyfinItem[] }>("get", "/Items", {
+      params: {
+        GenreIds: genreId,
+        IncludeItemTypes: "Audio",
+        Recursive: true,
+        SortBy: "AlbumArtist,Album,SortName",
+        Limit: limit,
+        userId: this.userId,
+      },
+    });
+    return this.mapSongs(res?.Items);
+  }
+
+  // --- Playback reporting (Sessions API) ---
+
+  private async report(path: string, body: Record<string, unknown>): Promise<void> {
+    try {
+      await this.request("post", path, { data: body });
+    } catch (err) {
+      // Reporting must never affect playback — log and swallow.
+      this.logger?.debug(
+        { err: describeJellyfinError(err), path },
+        "Jellyfin playback report failed",
+      );
+    }
+  }
+
+  createPlaybackReporter(): JellyfinPlaybackReporter {
+    // One session per track start; remember the last reported position so the
+    // implicit stop on track change carries a sane PositionTicks (a natural
+    // track end reports ~full duration → Jellyfin counts the play).
+    let current: { itemId: string; sessionId: string; lastPosSec: number } | null = null;
+    const report = this.report.bind(this);
+    return {
+      onTrackStart(itemId: string): void {
+        if (current) {
+          void report("/Sessions/Playing/Stopped", {
+            ItemId: current.itemId,
+            PlaySessionId: current.sessionId,
+            PositionTicks: Math.round(current.lastPosSec * TICKS_PER_SECOND),
+          });
+        }
+        current = { itemId, sessionId: crypto.randomUUID(), lastPosSec: 0 };
+        void report("/Sessions/Playing", {
+          ItemId: itemId,
+          PlaySessionId: current.sessionId,
+          PositionTicks: 0,
+          CanSeek: true,
+        });
+      },
+      onTick(itemId: string, positionSec: number, paused: boolean): void {
+        if (!current || current.itemId !== itemId) return;
+        current.lastPosSec = positionSec;
+        void report("/Sessions/Playing/Progress", {
+          ItemId: itemId,
+          PlaySessionId: current.sessionId,
+          PositionTicks: Math.round(positionSec * TICKS_PER_SECOND),
+          IsPaused: paused,
+        });
+      },
+      onStop(): void {
+        if (!current) return;
+        void report("/Sessions/Playing/Stopped", {
+          ItemId: current.itemId,
+          PlaySessionId: current.sessionId,
+          PositionTicks: Math.round(current.lastPosSec * TICKS_PER_SECOND),
+        });
+        current = null;
+      },
+    };
+  }
+}

src/music/provider.ts

@@ -1,3 +1,15 @@
+/** All music source platforms. Jellyfin ItemIds are GUID strings — never
+ *  assume numeric ids when handling a generic Platform. */
+export type Platform =
+  | "netease"
+  | "qq"
+  | "bilibili"
+  | "youtube"
+  | "local"
+  | "kugou"
+  | "spotify"
+  | "jellyfin";
+
 export interface Song {
   id: string;
   name: string;
@@ -5,7 +17,7 @@ export interface Song {
   album: string;
   duration: number; // seconds
   coverUrl: string;
-  platform: "netease" | "qq" | "bilibili" | "youtube" | "local" | "kugou" | "spotify";
+  platform: Platform;
   /** VIP / copyright-restricted: non-VIP users can only play a trial fragment
    *  (NetEase fee=1 VIP / fee=4 album-only, or QQ pay.payplay/paytrackprice=1). */
   vip?: boolean;
@@ -27,7 +39,7 @@ export interface Playlist {
   name: string;
   coverUrl: string;
   songCount: number;
-  platform: "netease" | "qq" | "bilibili" | "youtube" | "local" | "kugou" | "spotify";
+  platform: Platform;
 }
 
 export interface PlaylistDetail {
@@ -44,7 +56,7 @@ export interface Album {
   artist: string;
   coverUrl: string;
   songCount: number;
-  platform: "netease" | "qq" | "bilibili" | "youtube" | "local" | "kugou" | "spotify";
+  platform: Platform;
 }
 
 export interface LyricLine {
@@ -72,7 +84,7 @@ export interface AuthStatus {
 }
 
 export interface MusicProvider {
-  readonly platform: "netease" | "qq" | "bilibili" | "youtube" | "local" | "kugou" | "spotify";
+  readonly platform: Platform;
 
   search(query: string, limit?: number, offset?: number): Promise<SearchResult>;
   getSongUrl(songId: string, quality?: string): Promise<SongUrlResult | null>;

src/music/qq.ts

@@ -364,8 +364,18 @@ export class QQMusicProvider implements MusicProvider {
         };
       }
     } catch {
-      // fall through to stub
+      // fall through to musicu.fcg fallback
     }
+
+    // Fallback: fetch metadata via u.y.qq.com/cgi-bin/musicu.fcg. The bundled
+    // library's /getSongInfo route is broken (upstream code 500001), so the
+    // primary try above almost always falls through here for QQ. Without this,
+    // play-by-id songs carry an empty name → the TS nickname / now-playing
+    // message renders as "♪ 正在播放:  -  []". This endpoint (same host/shape
+    // as search) reliably returns full track_info without requiring login.
+    const detail = await this.fetchSongDetailViaMusicu(songId);
+    if (detail) return detail;
+
     // Minimal stub — resolveAndPlay only needs id + platform to fetch a
     // play URL. Name/artist/album will be empty in play history, but the
     // song will actually play, which is the important part.
@@ -380,6 +390,42 @@ export class QQMusicProvider implements MusicProvider {
     };
   }
 
+  /** Fetch a single song's metadata via u.y.qq.com/cgi-bin/musicu.fcg
+   * (module music.pf_song_detail_svr / get_song_detail_yqq). This mirrors the
+   * search path's host + request shape and, unlike the library's /getSongInfo,
+   * actually works against QQ's current API. Returns null on any failure so the
+   * caller can fall back to the minimal stub. */
+  private async fetchSongDetailViaMusicu(songId: string): Promise<Song | null> {
+    try {
+      const reqData = JSON.stringify({
+        req_0: {
+          module: "music.pf_song_detail_svr",
+          method: "get_song_detail_yqq",
+          param: { song_mid: songId, song_type: 0 },
+        },
+      });
+      const res = await qqMusicuApi.get("/cgi-bin/musicu.fcg", {
+        params: { format: "json", data: reqData },
+      });
+      const t = res.data?.req_0?.data?.track_info;
+      if (!t) return null;
+      const albumMid = t.album?.mid ?? t.album?.pmid ?? "";
+      return {
+        id: String(t.mid ?? t.id ?? songId),
+        name: t.name ?? t.title ?? "",
+        artist: (t.singer ?? []).map((a: any) => a.name ?? a.title ?? "").filter(Boolean).join(" / "),
+        album: t.album?.name ?? t.album?.title ?? "",
+        duration: t.interval ?? 0,
+        coverUrl: albumMid
+          ? `https://y.gtimg.cn/music/photo_new/T002R300x300M000${albumMid}.jpg`
+          : "",
+        platform: "qq",
+      };
+    } catch {
+      return null;
+    }
+  }
+
   async getPlaylistSongs(playlistId: string): Promise<Song[]> {
     const res = await this.api.get("/getSongListDetail", {
       params: { disstid: playlistId, ...this.cookieParams },

src/web/api/auth.test.ts

@@ -0,0 +1,74 @@
+import { describe, it, expect, vi } from "vitest";
+import express from "express";
+import request from "supertest";
+import pino from "pino";
+import type { MusicProvider } from "../../music/provider.js";
+import { getDefaultConfig, type JellyfinConfig } from "../../data/config.js";
+import { createAuthRouter } from "./auth.js";
+
+function fakeProvider(platform: MusicProvider["platform"]): MusicProvider {
+  return { platform } as unknown as MusicProvider;
+}
+
+describe("auth router POST /jellyfin/test", () => {
+  function mount(
+    stored: Partial<JellyfinConfig>,
+    user: unknown = { role: "admin" },
+  ) {
+    const config = getDefaultConfig();
+    Object.assign(config.jellyfin, stored);
+    const testConnection = vi.fn().mockResolvedValue({ ok: true, serverName: "JF" });
+    const jellyfin = { platform: "jellyfin", testConnection } as unknown as MusicProvider;
+    const app = express();
+    app.use(express.json());
+    app.use((req, _res, next) => { (req as { user?: unknown }).user = user; next(); });
+    app.use(
+      "/api/auth",
+      createAuthRouter(
+        fakeProvider("netease"), fakeProvider("qq"), fakeProvider("bilibili"),
+        pino({ level: "silent" }), undefined, undefined, undefined, jellyfin, config,
+      ),
+    );
+    return { app, testConnection };
+  }
+
+  it("fills empty credential fields from the stored config (masked password case)", async () => {
+    const { app, testConnection } = mount({
+      serverUrl: "https://old.example.com",
+      username: "bob",
+      password: "stored-pw",
+    });
+    const res = await request(app)
+      .post("/api/auth/jellyfin/test")
+      .send({ serverUrl: "https://new.example.com", username: "bob", password: "" });
+    expect(res.status).toBe(200);
+    expect(res.body.ok).toBe(true);
+    expect(testConnection).toHaveBeenCalledWith(
+      expect.objectContaining({
+        serverUrl: "https://new.example.com",
+        username: "bob",
+        password: "stored-pw",
+      }),
+    );
+  });
+
+  it("passes freshly entered credentials through", async () => {
+    const { app, testConnection } = mount({});
+    await request(app).post("/api/auth/jellyfin/test").send({
+      serverUrl: "https://jf.example.com",
+      authMode: "apikey",
+      apiKey: "key123",
+      userId: "u1",
+    });
+    expect(testConnection).toHaveBeenCalledWith(
+      expect.objectContaining({ authMode: "apikey", apiKey: "key123", userId: "u1" }),
+    );
+  });
+
+  it("is 403 for a member lacking platform.auth", async () => {
+    const { app, testConnection } = mount({}, { role: "member", capabilities: new Set([]) });
+    const res = await request(app).post("/api/auth/jellyfin/test").send({});
+    expect(res.status).toBe(403);
+    expect(testConnection).not.toHaveBeenCalled();
+  });
+});

src/web/api/auth.ts

@@ -3,6 +3,7 @@ import type { MusicProvider } from "../../music/provider.js";
 import { YouTubeProvider } from "../../music/youtube.js";
 import type { CookieStore } from "../../music/auth.js";
 import type { Logger } from "../../logger.js";
+import type { BotConfig, JellyfinConfig } from "../../data/config.js";
 import { requirePermission } from "../middleware/requirePermission.js";
 import { requireNotGuest } from "../middleware/requireNotGuest.js";
 
@@ -13,7 +14,9 @@ export function createAuthRouter(
   logger: Logger,
   cookieStore?: CookieStore,
   kugouProvider?: MusicProvider,
-  spotifyProvider?: MusicProvider
+  spotifyProvider?: MusicProvider,
+  jellyfinProvider?: MusicProvider,
+  config?: BotConfig
 ): Router {
   const router = Router();
   // YouTube is auth-less; we only use this instance so /auth/status can
@@ -25,6 +28,7 @@ export function createAuthRouter(
     if (platform === "youtube") return youtubeProvider;
     if (platform === "kugou" && kugouProvider) return kugouProvider;
     if (platform === "spotify" && spotifyProvider) return spotifyProvider;
+    if (platform === "jellyfin" && jellyfinProvider) return jellyfinProvider;
     return platform === "qq" ? qqProvider : neteaseProvider;
   }
 
@@ -84,6 +88,45 @@ export function createAuthRouter(
     }
   });
 
+  // Jellyfin has no QR/cookie flow — the connection is admin-configured. This
+  // round-trips /System/Info so Settings can verify form values BEFORE saving.
+  // Empty/missing credential fields fall back to the stored config, so a
+  // masked (not re-entered) password still tests the live setup.
+  router.post("/jellyfin/test", requirePermission("platform.auth"), async (req, res) => {
+    const testable = jellyfinProvider as
+      | (MusicProvider & {
+          testConnection?: (
+            candidate?: JellyfinConfig,
+          ) => Promise<{ ok: boolean; serverName?: string; version?: string; error?: string }>;
+        })
+      | undefined;
+    if (!testable?.testConnection) {
+      res.status(501).json({ error: "Jellyfin provider not available" });
+      return;
+    }
+    try {
+      const body = (req.body ?? {}) as Partial<JellyfinConfig>;
+      const stored = config?.jellyfin;
+      const str = (v: unknown, fallback: string) =>
+        typeof v === "string" && v.trim() !== "" ? v.trim() : fallback;
+      const candidate: JellyfinConfig = {
+        serverUrl: str(body.serverUrl, stored?.serverUrl ?? ""),
+        authMode:
+          body.authMode === "apikey" || body.authMode === "userpass"
+            ? body.authMode
+            : stored?.authMode ?? "userpass",
+        username: str(body.username, stored?.username ?? ""),
+        password: str(body.password, stored?.password ?? ""),
+        apiKey: str(body.apiKey, stored?.apiKey ?? ""),
+        userId: str(body.userId, stored?.userId ?? ""),
+      };
+      res.json(await testable.testConnection(candidate));
+    } catch (err) {
+      logger.error({ err }, "Jellyfin test connection failed");
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
   router.post("/sms/send", requirePermission("platform.auth"), async (req, res) => {
     try {
       const { phone } = req.body;
@@ -139,6 +182,14 @@ export function createAuthRouter(
         .json({ error: "YouTube does not use cookies (uses yt-dlp binary)" });
       return;
     }
+    // Jellyfin auth is server-configured (Settings → connection card), not
+    // cookie-based; falling through would clobber the NetEase cookie entry.
+    if (platform === "jellyfin") {
+      res
+        .status(400)
+        .json({ error: "Jellyfin 通过 Settings 配置连接，不支持手动 Cookie" });
+      return;
+    }
     const provider = getProvider(platform);
     provider.setCookie(cookie);
     const plat = platform === "bilibili" ? "bilibili" as const

src/web/api/bot.test.ts

@@ -13,7 +13,7 @@ import { createAvatarStore } from "../../data/avatars.js";
 import { createRequireAuth } from "../middleware/requireAuth.js";
 import { createPermissionStore } from "../../data/permissions.js";
 import { createBotRouter } from "./bot.js";
-import { getDefaultConfig, type BotConfig } from "../../data/config.js";
+import { getDefaultConfig, type BotConfig, type JellyfinConfig } from "../../data/config.js";
 import { SESSION_COOKIE_NAME } from "../auth/validateSession.js";
 import type { BotManager } from "../../bot/manager.js";
 
@@ -561,3 +561,140 @@ describe("bot router /settings guest-mode gating + persistence", () => {
     expect(config.spotify.clientId).toBe("");
   });
 });
+
+describe("bot router /settings jellyfin block + enabledProviders", () => {
+  let tmpDir: string;
+  let configPath: string;
+  let config: BotConfig;
+  let botDb: BotDatabase;
+  let configureCalls: JellyfinConfig[];
+
+  beforeEach(() => {
+    botDb = createDatabase(":memory:");
+    tmpDir = mkdtempSync(join(tmpdir(), "botsettings-jf-"));
+    configPath = join(tmpDir, "config.json");
+    config = getDefaultConfig();
+    configureCalls = [];
+  });
+
+  afterEach(() => {
+    botDb.close();
+    rmSync(tmpDir, { recursive: true, force: true });
+  });
+
+  function mountBot(): express.Express {
+    const fakeManager = { getAllBots: () => [] } as unknown as BotManager;
+    const avatarStore = createAvatarStore(tmpDir);
+    const app = express();
+    app.use(express.json());
+    app.use((req, _res, next) => { (req as { user?: unknown }).user = { role: "admin" }; next(); });
+    app.use(
+      "/api/bot",
+      createBotRouter(
+        fakeManager, config, configPath, pino({ level: "silent" }), botDb, avatarStore,
+        undefined, undefined, undefined,
+        { configure: (cfg: JellyfinConfig) => configureCalls.push({ ...cfg }) },
+      ),
+    );
+    return app;
+  }
+
+  it("GET /settings exposes a masked jellyfin block (no password/apiKey echo)", async () => {
+    config.jellyfin.serverUrl = "https://jf.example.com";
+    config.jellyfin.password = "secret";
+    const res = await request(mountBot()).get("/api/bot/settings");
+    expect(res.status).toBe(200);
+    expect(res.body.jellyfin).toEqual({
+      serverUrl: "https://jf.example.com",
+      authMode: "userpass",
+      username: "",
+      userId: "",
+      hasPassword: true,
+      hasApiKey: false,
+    });
+    // Default: online sources on, jellyfin opt-in (not listed).
+    expect(res.body.enabledProviders).toEqual(["netease", "qq", "bilibili", "youtube", "kugou"]);
+  });
+
+  it("POST /settings merges jellyfin, keeps stored secrets on blank, hot-configures", async () => {
+    config.jellyfin.password = "stored-pw";
+    const app = mountBot();
+    const res = await request(app).post("/api/bot/settings").send({
+      jellyfin: { serverUrl: "https://jf.example.com///", username: "bob", password: "" },
+    });
+    expect(res.status).toBe(200);
+    // Trailing slashes normalized; blank password kept the stored one.
+    expect(config.jellyfin.serverUrl).toBe("https://jf.example.com");
+    expect(config.jellyfin.username).toBe("bob");
+    expect(config.jellyfin.password).toBe("stored-pw");
+    expect(res.body.jellyfin.hasPassword).toBe(true);
+    // Live provider re-configured with the post-merge values.
+    expect(configureCalls).toHaveLength(1);
+    expect(configureCalls[0].serverUrl).toBe("https://jf.example.com");
+    expect(configureCalls[0].password).toBe("stored-pw");
+    // Persisted to disk.
+    const onDisk = JSON.parse(readFileSync(configPath, "utf-8"));
+    expect(onDisk.jellyfin.username).toBe("bob");
+  });
+
+  it("POST /settings filters enabledProviders to known providers", async () => {
+    const res = await request(mountBot()).post("/api/bot/settings").send({
+      enabledProviders: ["jellyfin", "netease", "bogus", 42],
+    });
+    expect(res.status).toBe(200);
+    expect(res.body.enabledProviders).toEqual(["jellyfin", "netease"]);
+    expect(config.enabledProviders).toEqual(["jellyfin", "netease"]);
+    // No jellyfin block in the request → no reconfigure call.
+    expect(configureCalls).toHaveLength(0);
+  });
+
+  // --- #126: operator-chosen default source ---
+
+  it("GET /settings exposes defaultPlatform (null by default)", async () => {
+    const res = await request(mountBot()).get("/api/bot/settings");
+    expect(res.status).toBe(200);
+    expect(res.body.defaultPlatform).toBeNull();
+  });
+
+  it("POST /settings sets an enabled defaultPlatform and persists it", async () => {
+    const res = await request(mountBot()).post("/api/bot/settings").send({
+      defaultPlatform: "bilibili",
+    });
+    expect(res.status).toBe(200);
+    expect(res.body.defaultPlatform).toBe("bilibili");
+    expect(config.defaultPlatform).toBe("bilibili");
+    const onDisk = JSON.parse(readFileSync(configPath, "utf-8"));
+    expect(onDisk.defaultPlatform).toBe("bilibili");
+  });
+
+  it("POST /settings ignores an unknown or disabled defaultPlatform", async () => {
+    const app = mountBot();
+    // jellyfin is opt-in and not enabled in the default config → rejected.
+    await request(app).post("/api/bot/settings").send({ defaultPlatform: "jellyfin" });
+    expect(config.defaultPlatform).toBeNull();
+    // Unknown value → rejected.
+    await request(app).post("/api/bot/settings").send({ defaultPlatform: "bogus" });
+    expect(config.defaultPlatform).toBeNull();
+  });
+
+  it("POST /settings clears defaultPlatform with null", async () => {
+    const app = mountBot();
+    await request(app).post("/api/bot/settings").send({ defaultPlatform: "qq" });
+    expect(config.defaultPlatform).toBe("qq");
+    const res = await request(app).post("/api/bot/settings").send({ defaultPlatform: null });
+    expect(res.body.defaultPlatform).toBeNull();
+    expect(config.defaultPlatform).toBeNull();
+  });
+
+  it("POST /settings drops a default whose source gets disabled in the same request", async () => {
+    const app = mountBot();
+    await request(app).post("/api/bot/settings").send({ defaultPlatform: "qq" });
+    expect(config.defaultPlatform).toBe("qq");
+    // Disabling qq via enabledProviders clears the now-invalid default.
+    const res = await request(app).post("/api/bot/settings").send({
+      enabledProviders: ["netease", "bilibili"],
+    });
+    expect(res.body.defaultPlatform).toBeNull();
+    expect(config.defaultPlatform).toBeNull();
+  });
+});

src/web/api/bot.ts

@@ -1,7 +1,7 @@
 import { Router } from "express";
 import type { BotManager } from "../../bot/manager.js";
-import type { BotConfig, GuestModeConfig, SpotifyConfig } from "../../data/config.js";
+import type { BotConfig, GuestModeConfig, SpotifyConfig, JellyfinConfig, GateableProvider } from "../../data/config.js";
-import { saveConfig } from "../../data/config.js";
+import { saveConfig, GATEABLE_PROVIDERS } from "../../data/config.js";
 import type { Logger } from "../../logger.js";
 import type { BotDatabase } from "../../data/database.js";
 import type { AvatarStore } from "../../data/avatars.js";
@@ -25,6 +25,11 @@ export function createBotRouter(
   // Settings must push creds here too, or search stays empty until a restart.
   // Structural type = SpotifyProvider.setCreds.
   spotifyProvider?: { setCreds(clientId: string, clientSecret: string): void },
+  // The live JellyfinProvider, so a Settings save re-points the connection
+  // without a restart (configure() drops the cached token only when
+  // credential-relevant fields actually changed). Structural type =
+  // JellyfinProvider.configure.
+  jellyfinProvider?: { configure(cfg: JellyfinConfig): void },
 ): Router {
   const router = Router();
 
@@ -39,6 +44,17 @@ export function createBotRouter(
     hasClientSecret: config.spotify.clientSecret.length > 0,
   });
 
+  // Masked jellyfin view: password and apiKey are write-only — only their
+  // presence is reported (mirrors maskedSpotify's clientSecret handling).
+  const maskedJellyfin = () => ({
+    serverUrl: config.jellyfin.serverUrl,
+    authMode: config.jellyfin.authMode,
+    username: config.jellyfin.username,
+    userId: config.jellyfin.userId,
+    hasPassword: config.jellyfin.password.length > 0,
+    hasApiKey: config.jellyfin.apiKey.length > 0,
+  });
+
   router.get("/", (req, res) => {
     const all = botManager.getAllBots().map((b) => b.getStatus());
     const u = req.user!;
@@ -59,6 +75,9 @@ export function createBotRouter(
       adminGroups: config.adminGroups ?? [],
       guestMode: config.guestMode,
       spotify: maskedSpotify(),
+      jellyfin: maskedJellyfin(),
+      enabledProviders: config.enabledProviders,
+      defaultPlatform: config.defaultPlatform,
     });
   });
 
@@ -130,8 +149,64 @@ export function createBotRouter(
       }
     }
 
+    // Partial-merge the jellyfin block (same contract as spotify): invalid
+    // sub-fields are ignored; password/apiKey are write-only and only stored
+    // when non-empty so a blank (masked) field never wipes them.
+    const jf = req.body?.jellyfin;
+    if (jf && typeof jf === "object") {
+      const t = config.jellyfin;
+      if (typeof jf.serverUrl === "string") {
+        t.serverUrl = jf.serverUrl.trim().replace(/\/+$/, "");
+      }
+      if (jf.authMode === "userpass" || jf.authMode === "apikey") t.authMode = jf.authMode;
+      if (typeof jf.username === "string") t.username = jf.username;
+      if (typeof jf.password === "string" && jf.password.length > 0) t.password = jf.password;
+      if (typeof jf.apiKey === "string" && jf.apiKey.length > 0) t.apiKey = jf.apiKey;
+      if (typeof jf.userId === "string") t.userId = jf.userId;
+    }
+
+    // enabledProviders: full replace, known providers only (mirrors loadConfig).
+    // An empty array is a valid "all gateable sources off". NOTE: the NetEase/QQ
+    // sidecar API servers are only started at boot, so newly enabling those two
+    // still needs a restart; jellyfin and the rest take effect immediately.
+    const ep = req.body?.enabledProviders;
+    if (Array.isArray(ep)) {
+      config.enabledProviders = ep.filter((p: unknown): p is GateableProvider =>
+        (GATEABLE_PROVIDERS as readonly string[]).includes(p as string),
+      );
+    }
+
+    // defaultPlatform (issue #126): the operator-chosen default source for
+    // platform-less commands/REST/WebUI calls. Reconciled AFTER enabledProviders
+    // so both are validated against the same (possibly updated) enabled list:
+    //   1) Drop a stored default that the new enabledProviders no longer allows,
+    //      keeping the persisted config consistent with loadConfig's invariant.
+    //   2) Apply an explicit change — `null`/`""` clears it (back to priority
+    //      order); a known+enabled provider sets it; anything else is ignored.
+    if (config.defaultPlatform && !config.enabledProviders.includes(config.defaultPlatform)) {
+      config.defaultPlatform = null;
+    }
+    if ("defaultPlatform" in req.body) {
+      const dp = req.body.defaultPlatform;
+      if (dp === null || dp === "") {
+        config.defaultPlatform = null;
+      } else if (
+        typeof dp === "string" &&
+        (GATEABLE_PROVIDERS as readonly string[]).includes(dp) &&
+        config.enabledProviders.includes(dp as GateableProvider)
+      ) {
+        config.defaultPlatform = dp as GateableProvider;
+      }
+    }
+
     saveConfig(configPath, config);
 
+    // Hot-apply the (possibly re-pointed) Jellyfin connection to the live
+    // provider — a Settings save must work without a restart.
+    if (jf && typeof jf === "object") {
+      jellyfinProvider?.configure(config.jellyfin);
+    }
+
     // I2: only when the spotify block was present, push the (possibly UI-entered)
     // Client ID into the live process-wide OAuth so Connect works without a
     // restart. Empty clientId => undefined redirect => configure() disables OAuth.
@@ -166,6 +241,9 @@ export function createBotRouter(
       adminGroups: config.adminGroups ?? [],
       guestMode: config.guestMode,
       spotify: maskedSpotify(),
+      jellyfin: maskedJellyfin(),
+      enabledProviders: config.enabledProviders,
+      defaultPlatform: config.defaultPlatform,
     });
   });
 

src/web/api/music.test.ts

@@ -1,12 +1,24 @@
-import { describe, it, expect, vi, beforeEach } from "vitest";
+import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
 import express from "express";
+import cookieParser from "cookie-parser";
 import request from "supertest";
 import pino from "pino";
+import { mkdtempSync, rmSync, readFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
 import type { MusicProvider, SearchResult } from "../../music/provider.js";
+import { getDefaultConfig, loadConfig, type BotConfig } from "../../data/config.js";
+import { createDatabase, type BotDatabase } from "../../data/database.js";
+import { createUserStore } from "../../data/users.js";
+import { createSessionStore } from "../../data/sessions.js";
+import { createPermissionStore } from "../../data/permissions.js";
+import { createRequireAuth } from "../middleware/requireAuth.js";
+import { SESSION_COOKIE_NAME } from "../auth/validateSession.js";
 import { createMusicRouter } from "./music.js";
 
+const empty: SearchResult = { songs: [], albums: [], playlists: [] };
+
 function fakeProvider(platform: MusicProvider["platform"]): MusicProvider {
-  const empty: SearchResult = { songs: [], albums: [], playlists: [] };
   return {
     platform,
     search: vi.fn().mockResolvedValue(empty),
@@ -47,3 +59,239 @@ describe("music router GET /search offset pagination", () => {
     expect(netease.search).toHaveBeenCalledWith("hello", 20, 0);
   });
 });
+
+describe("music router provider gating (enabledProviders) + jellyfin endpoints", () => {
+  function jellyfinFake(): MusicProvider {
+    return {
+      platform: "jellyfin",
+      search: vi.fn().mockResolvedValue(empty),
+      getQuality: vi.fn().mockReturnValue("direct"),
+      getLatestAlbums: vi
+        .fn()
+        .mockResolvedValue([{ id: "a1", name: "Album", platform: "jellyfin" }]),
+      getFavoriteSongs: vi.fn().mockResolvedValue([]),
+    } as unknown as MusicProvider;
+  }
+
+  function mount(config: BotConfig) {
+    const netease = fakeProvider("netease");
+    const jellyfin = jellyfinFake();
+    const router = createMusicRouter(
+      netease,
+      fakeProvider("qq"),
+      fakeProvider("bilibili"),
+      pino({ level: "silent" }),
+      undefined,
+      config,
+      fakeProvider("kugou"),
+      fakeProvider("spotify"),
+      jellyfin,
+    );
+    const app = express();
+    app.use("/api/music", router);
+    return { app, netease, jellyfin };
+  }
+
+  it("routes a platform-less /search to the default platform (netease)", async () => {
+    const { app, netease, jellyfin } = mount(getDefaultConfig());
+    const res = await request(app).get("/api/music/search?q=hello");
+    expect(res.status).toBe(200);
+    expect(netease.search).toHaveBeenCalledWith("hello", 20, 0);
+    expect(jellyfin.search).not.toHaveBeenCalled();
+  });
+
+  it("rejects a disabled platform with 400 without calling its provider", async () => {
+    // Default config leaves jellyfin (opt-in) disabled.
+    const { app, jellyfin } = mount(getDefaultConfig());
+    const res = await request(app).get("/api/music/search?q=hello&platform=jellyfin");
+    expect(res.status).toBe(400);
+    expect(jellyfin.search).not.toHaveBeenCalled();
+  });
+
+  it("allows an explicitly enabled jellyfin platform", async () => {
+    const config = getDefaultConfig();
+    config.enabledProviders = [...config.enabledProviders, "jellyfin"];
+    const { app, jellyfin } = mount(config);
+    const res = await request(app).get("/api/music/search?q=hello&platform=jellyfin");
+    expect(res.status).toBe(200);
+    expect(jellyfin.search).toHaveBeenCalledWith("hello", 20, 0);
+  });
+
+  it("GET /providers reports enabled sources and the default platform", async () => {
+    const { app } = mount(getDefaultConfig());
+    const res = await request(app).get("/api/music/providers");
+    expect(res.status).toBe(200);
+    expect(res.body.default).toBe("netease");
+    expect(res.body.enabled).toContain("netease");
+    expect(res.body.enabled).toContain("local"); // localAudioEnabled defaults on
+    expect(res.body.enabled).not.toContain("jellyfin"); // opt-in, off by default
+    expect(res.body.enabled).not.toContain("spotify"); // spotify.enabled defaults off
+  });
+
+  it("GET /providers reports a configured defaultPlatform override (#126)", async () => {
+    const config = getDefaultConfig();
+    config.defaultPlatform = "qq"; // operator prefers QQ over the priority order
+    const { app } = mount(config);
+    const res = await request(app).get("/api/music/providers");
+    expect(res.status).toBe(200);
+    expect(res.body.default).toBe("qq");
+  });
+
+  it("routes a platform-less /search to the configured defaultPlatform (#126)", async () => {
+    const config = getDefaultConfig();
+    config.defaultPlatform = "bilibili";
+    const { app, netease } = mount(config);
+    const res = await request(app).get("/api/music/search?q=hello");
+    expect(res.status).toBe(200);
+    // Default is now bilibili, so the netease provider must NOT be hit.
+    expect(netease.search).not.toHaveBeenCalled();
+  });
+
+  /** Default config plus the opt-in jellyfin source enabled. */
+  function configWithJellyfin() {
+    const config = getDefaultConfig();
+    config.enabledProviders = [...config.enabledProviders, "jellyfin"];
+    return config;
+  }
+
+  it("GET /jellyfin/latest-albums returns provider data", async () => {
+    const { app, jellyfin } = mount(configWithJellyfin());
+    const res = await request(app).get("/api/music/jellyfin/latest-albums?limit=5");
+    expect(res.status).toBe(200);
+    expect(
+      (jellyfin as unknown as { getLatestAlbums: ReturnType<typeof vi.fn> }).getLatestAlbums,
+    ).toHaveBeenCalledWith(5);
+    expect(res.body.albums).toHaveLength(1);
+  });
+
+  it("GET /jellyfin/latest-albums is 400 when jellyfin is disabled (the default)", async () => {
+    const { app } = mount(getDefaultConfig());
+    const res = await request(app).get("/api/music/jellyfin/latest-albums");
+    expect(res.status).toBe(400);
+  });
+
+  it("GET /jellyfin/favorites denies unauthenticated/guest access", async () => {
+    const { app } = mount(configWithJellyfin());
+    const res = await request(app).get("/api/music/jellyfin/favorites");
+    expect(res.status).toBe(401);
+  });
+});
+
+describe("music router POST /quality — persistence (#125)", () => {
+  let tmpDir: string;
+  let configPath: string;
+  let config: BotConfig;
+  let botDb: BotDatabase;
+  let app: express.Express;
+  let cookie: string;
+  let providers: Record<string, MusicProvider>;
+
+  /** A provider whose in-memory quality is settable and readable, like the real
+   *  ones. */
+  function qualityProvider(platform: MusicProvider["platform"], initial: string): MusicProvider {
+    let q = initial;
+    return {
+      platform,
+      search: vi.fn().mockResolvedValue(empty),
+      getQuality: vi.fn(() => q),
+      setQuality: vi.fn((v: string) => { q = v; }),
+    } as unknown as MusicProvider;
+  }
+
+  /** Jellyfin only accepts its own tiers (mirrors the real provider), so a
+   *  broadcast of a foreign value is ignored — proving the snapshot captures each
+   *  provider's ACTUAL post-apply state, not just the request value. */
+  function jellyfinQualityProvider(): MusicProvider {
+    let q = "direct";
+    const tiers = new Set(["direct", "320", "192", "128"]);
+    return {
+      platform: "jellyfin",
+      search: vi.fn().mockResolvedValue(empty),
+      getQuality: vi.fn(() => q),
+      setQuality: vi.fn((v: string) => { if (tiers.has(v)) q = v; }),
+    } as unknown as MusicProvider;
+  }
+
+  beforeEach(async () => {
+    botDb = createDatabase(":memory:");
+    const users = createUserStore(botDb.db);
+    const sessions = createSessionStore(botDb.db);
+    const admin = await users.createUser("admin", "pw-admin", "admin");
+    cookie = `${SESSION_COOKIE_NAME}=${sessions.createSession(admin.id).token}`;
+
+    tmpDir = mkdtempSync(join(tmpdir(), "musicquality-"));
+    configPath = join(tmpDir, "config.json");
+    config = getDefaultConfig();
+
+    providers = {
+      netease: qualityProvider("netease", "exhigh"),
+      qq: qualityProvider("qq", "exhigh"),
+      bilibili: qualityProvider("bilibili", "high"),
+      kugou: qualityProvider("kugou", "128"),
+      jellyfin: jellyfinQualityProvider(),
+    };
+
+    app = express();
+    app.use(express.json());
+    app.use(cookieParser());
+    app.use("/api", createRequireAuth(sessions, createPermissionStore(botDb.db), () => getDefaultConfig().guestMode));
+    app.use(
+      "/api/music",
+      createMusicRouter(
+        providers.netease, providers.qq, providers.bilibili, pino({ level: "silent" }),
+        undefined, config, providers.kugou, undefined, providers.jellyfin, configPath,
+      ),
+    );
+  });
+
+  afterEach(() => {
+    botDb.close();
+    rmSync(tmpDir, { recursive: true, force: true });
+  });
+
+  it("persists a platform-specific quality change to config.json", async () => {
+    const res = await request(app)
+      .post("/api/music/quality")
+      .set("Cookie", cookie)
+      .send({ platform: "netease", quality: "lossless" });
+    expect(res.status).toBe(200);
+    expect(providers.netease.setQuality).toHaveBeenCalledWith("lossless");
+    // in-memory config mutated
+    expect(config.audioQuality.netease).toBe("lossless");
+    // written to disk + reload reflects it (survives a restart)
+    const onDisk = JSON.parse(readFileSync(configPath, "utf-8"));
+    expect(onDisk.audioQuality.netease).toBe("lossless");
+    expect(loadConfig(configPath).audioQuality.netease).toBe("lossless");
+  });
+
+  it("snapshots each provider's post-apply quality on a broadcast change", async () => {
+    const res = await request(app)
+      .post("/api/music/quality")
+      .set("Cookie", cookie)
+      .send({ quality: "320" });
+    expect(res.status).toBe(200);
+    // Broadcast reached every provider…
+    expect(providers.netease.setQuality).toHaveBeenCalledWith("320");
+    expect(providers.jellyfin.setQuality).toHaveBeenCalledWith("320");
+    // …and the snapshot reflects what each one actually accepted. Jellyfin's
+    // "320" is a valid tier here, so it takes; a foreign value would be ignored.
+    expect(config.audioQuality).toEqual({
+      netease: "320",
+      qq: "320",
+      bilibili: "320",
+      kugou: "320",
+      jellyfin: "320",
+    });
+  });
+
+  it("ignores foreign broadcast values that a provider rejects (jellyfin)", async () => {
+    const res = await request(app)
+      .post("/api/music/quality")
+      .set("Cookie", cookie)
+      .send({ quality: "lossless" });
+    expect(res.status).toBe(200);
+    // jellyfin rejects the NetEase-style value → stays at its default tier.
+    expect(config.audioQuality.jellyfin).toBe("direct");
+    expect(config.audioQuality.netease).toBe("lossless");
+  });
+});

src/web/api/music.ts

@@ -1,8 +1,8 @@
-import express, { Router } from "express";
+import express, { Router, type Response } from "express";
-import type { MusicProvider } from "../../music/provider.js";
+import type { MusicProvider, Song, Album } from "../../music/provider.js";
 import { YouTubeProvider } from "../../music/youtube.js";
 import type { Logger } from "../../logger.js";
-import type { BotConfig } from "../../data/config.js";
+import { isProviderEnabled, defaultPlatform, saveConfig, type BotConfig } from "../../data/config.js";
 import { requirePermission } from "../middleware/requirePermission.js";
 import { requireNotGuest } from "../middleware/requireNotGuest.js";
 import { authorize } from "../middleware/authorize.js";
@@ -15,7 +15,11 @@ export function createMusicRouter(
   localProvider?: MusicProvider,
   config?: BotConfig,
   kugouProvider?: MusicProvider,
-  spotifyProvider?: MusicProvider
+  spotifyProvider?: MusicProvider,
+  jellyfinProvider?: MusicProvider,
+  // When set (alongside config), a quality change is persisted to config.json so
+  // it survives a restart (#125). Omitted by unit-test routers → no persistence.
+  configPath?: string,
 ): Router {
   const router = Router();
   const youtubeProvider: MusicProvider = new YouTubeProvider();
@@ -30,9 +34,27 @@ export function createMusicRouter(
     if (platform === "local" && localProvider) return localProvider;
     if (platform === "kugou" && kugouProvider) return kugouProvider;
     if (platform === "spotify" && spotifyProvider) return spotifyProvider;
+    if (platform === "jellyfin" && jellyfinProvider) return jellyfinProvider;
     return platform === "qq" ? qqProvider : neteaseProvider;
   }
 
+  /**
+   * Provider gating for user-supplied platform params. No platform → the
+   * configured default (see defaultPlatform(); netease in the default config).
+   * A disabled platform gets a friendly 400 and null back — the handler must
+   * return immediately. Without a config (unit-test routers), everything
+   * stays enabled.
+   */
+  function resolveProvider(platform: unknown, res: Response): MusicProvider | null {
+    const requested = typeof platform === "string" && platform ? platform : undefined;
+    const target = requested ?? (config ? defaultPlatform(config) : "netease");
+    if (config && !isProviderEnabled(config, target)) {
+      res.status(400).json({ error: `音源未启用：${target} (provider disabled)` });
+      return null;
+    }
+    return getProvider(target);
+  }
+
   router.post(
     "/local/upload",
     authorize({ capability: "player.queue", guestFlag: "addToQueue" }),
@@ -95,7 +117,8 @@ export function createMusicRouter(
         res.json({ songs: [], playlists: [], albums: [] });
         return;
       }
-      const provider = getProvider(platform as string);
+      const provider = resolveProvider(platform, res);
+      if (!provider) return;
       // Server-side pagination: offset lets the web load past the first page.
       // Clamp to >= 0 so a bad/negative value falls back to the first page.
       const parsedOffset = Math.max(0, parseInt(offset as string) || 0);
@@ -124,15 +147,22 @@ export function createMusicRouter(
       // backend lands (Stage 2/3), so surfacing them in the default all-sources
       // view would only yield results that get skipped. Spotify search remains
       // available from its own tab via /search?platform=spotify.
-      const [neteaseResult, qqResult, bilibiliResult, localResult, kugouResult] = await Promise.allSettled([
+      // Provider gating (#enabledProviders): disabled sources are skipped, not
-        neteaseProvider.search(q as string, parsedLimit),
+      // searched. Jellyfin (an opt-in source) leads the merged results when
-        qqProvider.search(q as string, parsedLimit),
+      // enabled — a self-hosted library match is almost always the wanted one.
-        bilibiliProvider.search(q as string, parsedLimit),
+      const enabled = (p: string) => !config || isProviderEnabled(config, p);
-        localProvider && isLocalAudioEnabled() ? localProvider.search(q as string, parsedLimit) : Promise.resolve({ songs: [], albums: [], playlists: [] }),
+      const none = { songs: [], albums: [], playlists: [] };
-        kugouProvider ? kugouProvider.search(q as string, parsedLimit) : Promise.resolve({ songs: [], albums: [], playlists: [] }),
+      const [jellyfinResult, neteaseResult, qqResult, bilibiliResult, localResult, kugouResult] = await Promise.allSettled([
+        jellyfinProvider && enabled("jellyfin") ? jellyfinProvider.search(q as string, parsedLimit) : Promise.resolve(none),
+        enabled("netease") ? neteaseProvider.search(q as string, parsedLimit) : Promise.resolve(none),
+        enabled("qq") ? qqProvider.search(q as string, parsedLimit) : Promise.resolve(none),
+        enabled("bilibili") ? bilibiliProvider.search(q as string, parsedLimit) : Promise.resolve(none),
+        localProvider && isLocalAudioEnabled() ? localProvider.search(q as string, parsedLimit) : Promise.resolve(none),
+        kugouProvider && enabled("kugou") ? kugouProvider.search(q as string, parsedLimit) : Promise.resolve(none),
       ]);
 
       const songs = [
+        ...(jellyfinResult.status === "fulfilled" ? jellyfinResult.value.songs : []),
         ...(neteaseResult.status === "fulfilled" ? neteaseResult.value.songs : []),
         ...(qqResult.status === "fulfilled" ? qqResult.value.songs : []),
         ...(bilibiliResult.status === "fulfilled" ? bilibiliResult.value.songs : []),
@@ -140,10 +170,12 @@ export function createMusicRouter(
         ...(kugouResult.status === "fulfilled" ? kugouResult.value.songs : []),
       ];
       const albums = [
+        ...(jellyfinResult.status === "fulfilled" ? jellyfinResult.value.albums : []),
         ...(neteaseResult.status === "fulfilled" ? neteaseResult.value.albums : []),
         ...(qqResult.status === "fulfilled" ? qqResult.value.albums : []),
       ];
       const playlists = [
+        ...(jellyfinResult.status === "fulfilled" ? jellyfinResult.value.playlists : []),
         ...(neteaseResult.status === "fulfilled" ? neteaseResult.value.playlists : []),
         ...(qqResult.status === "fulfilled" ? qqResult.value.playlists : []),
       ];
@@ -161,7 +193,8 @@ export function createMusicRouter(
         res.status(403).json({ error: "本地音频播放已关闭" });
         return;
       }
-      const provider = getProvider(req.query.platform as string);
+      const provider = resolveProvider(req.query.platform, res);
+      if (!provider) return;
       const song = await provider.getSongDetail(req.params.id);
       if (!song) {
         res.status(404).json({ error: "Song not found" });
@@ -175,7 +208,8 @@ export function createMusicRouter(
 
   router.get("/playlist/:id", async (req, res) => {
     try {
-      const provider = getProvider(req.query.platform as string);
+      const provider = resolveProvider(req.query.platform, res);
+      if (!provider) return;
       const songs = await provider.getPlaylistSongs(req.params.id);
       res.json({ songs });
     } catch (err) {
@@ -185,7 +219,8 @@ export function createMusicRouter(
 
   router.get("/recommend/playlists", async (req, res) => {
     try {
-      const provider = getProvider(req.query.platform as string);
+      const provider = resolveProvider(req.query.platform, res);
+      if (!provider) return;
       const playlists = await provider.getRecommendPlaylists();
       res.json({ playlists });
     } catch (err) {
@@ -195,7 +230,8 @@ export function createMusicRouter(
 
   router.get("/album/:id", async (req, res) => {
     try {
-      const provider = getProvider(req.query.platform as string);
+      const provider = resolveProvider(req.query.platform, res);
+      if (!provider) return;
       const songs = await provider.getAlbumSongs(req.params.id);
       res.json({ songs });
     } catch (err) {
@@ -205,7 +241,8 @@ export function createMusicRouter(
 
   router.get("/lyrics/:id", async (req, res) => {
     try {
-      const provider = getProvider(req.query.platform as string);
+      const provider = resolveProvider(req.query.platform, res);
+      if (!provider) return;
       const lyrics = await provider.getLyrics(req.params.id);
       res.json({ lyrics });
     } catch (err) {
@@ -215,7 +252,8 @@ export function createMusicRouter(
 
   router.get("/recommend/songs", requireNotGuest, async (req, res) => {
     try {
-      const provider = getProvider(req.query.platform as string);
+      const provider = resolveProvider(req.query.platform, res);
+      if (!provider) return;
       if (!provider.getDailyRecommendSongs) {
         res.status(501).json({ error: "Not supported by this provider" });
         return;
@@ -230,7 +268,8 @@ export function createMusicRouter(
 
   router.get("/personal/fm", requireNotGuest, async (req, res) => {
     try {
-      const provider = getProvider(req.query.platform as string);
+      const provider = resolveProvider(req.query.platform, res);
+      if (!provider) return;
       if (!provider.getPersonalFm) {
         res.status(501).json({ error: "Not supported by this provider" });
         return;
@@ -245,7 +284,8 @@ export function createMusicRouter(
 
   router.get("/user/playlists", requireNotGuest, async (req, res) => {
     try {
-      const provider = getProvider(req.query.platform as string);
+      const provider = resolveProvider(req.query.platform, res);
+      if (!provider) return;
       if (!provider.getUserPlaylists) {
         res.status(501).json({ error: "Not supported by this provider" });
         return;
@@ -260,7 +300,8 @@ export function createMusicRouter(
 
   router.get("/playlist/:id/detail", async (req, res) => {
     try {
-      const provider = getProvider(req.query.platform as string);
+      const provider = resolveProvider(req.query.platform, res);
+      if (!provider) return;
       if (!provider.getPlaylistDetail) {
         res.status(501).json({ error: "Not supported by this provider" });
         return;
@@ -294,6 +335,114 @@ export function createMusicRouter(
     }
   });
 
+  // Enabled sources + default platform, for the web UI (source tabs, default
+  // search/playback source). Without a config (unit-test routers) everything
+  // reports enabled with the legacy netease default.
+  router.get("/providers", (_req, res) => {
+    const ALL_PLATFORMS = [
+      "jellyfin",
+      "netease",
+      "qq",
+      "bilibili",
+      "youtube",
+      "kugou",
+      "spotify",
+      "local",
+    ];
+    res.json({
+      enabled: config ? ALL_PLATFORMS.filter((p) => isProviderEnabled(config, p)) : ALL_PLATFORMS,
+      default: config ? defaultPlatform(config) : "netease",
+    });
+  });
+
+  // ─── Jellyfin home-page data ───────────────────────────────────────────
+  // The concrete JellyfinProvider surface these endpoints consume; the router
+  // only knows the MusicProvider interface, so narrow structurally (same
+  // pattern as localProvider.uploadAudio above).
+  type JellyfinHomeProvider = MusicProvider & {
+    getLatestAlbums?: (limit?: number) => Promise<Album[]>;
+    getMostPlayed?: (limit?: number) => Promise<Song[]>;
+    getFavoriteSongs?: (limit?: number) => Promise<Song[]>;
+    getGenres?: (limit?: number) => Promise<{ id: string; name: string }[]>;
+    getGenreSongs?: (genreId: string, limit?: number) => Promise<Song[]>;
+  };
+  const jellyfinHome = jellyfinProvider as JellyfinHomeProvider | undefined;
+
+  /** 501 when no provider is wired, 400 when the source is disabled. */
+  function jellyfinOrReject(res: Response): JellyfinHomeProvider | null {
+    if (!jellyfinHome) {
+      res.status(501).json({ error: "Jellyfin provider not configured" });
+      return null;
+    }
+    if (config && !isProviderEnabled(config, "jellyfin")) {
+      res.status(400).json({ error: "音源未启用：jellyfin (provider disabled)" });
+      return null;
+    }
+    return jellyfinHome;
+  }
+
+  router.get("/jellyfin/latest-albums", async (req, res) => {
+    try {
+      const p = jellyfinOrReject(res);
+      if (!p) return;
+      const limit = parseInt(req.query.limit as string) || 12;
+      res.json({ albums: (await p.getLatestAlbums?.(limit)) ?? [] });
+    } catch (err) {
+      logger.error({ err }, "Jellyfin latest albums failed");
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
+  router.get("/jellyfin/most-played", async (req, res) => {
+    try {
+      const p = jellyfinOrReject(res);
+      if (!p) return;
+      const limit = parseInt(req.query.limit as string) || 12;
+      res.json({ songs: (await p.getMostPlayed?.(limit)) ?? [] });
+    } catch (err) {
+      logger.error({ err }, "Jellyfin most played failed");
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
+  // Favorites are account-level data — guests don't get them (matches the
+  // requireNotGuest gate on /user/playlists).
+  router.get("/jellyfin/favorites", requireNotGuest, async (req, res) => {
+    try {
+      const p = jellyfinOrReject(res);
+      if (!p) return;
+      const limit = parseInt(req.query.limit as string) || 100;
+      res.json({ songs: (await p.getFavoriteSongs?.(limit)) ?? [] });
+    } catch (err) {
+      logger.error({ err }, "Jellyfin favorites failed");
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
+  router.get("/jellyfin/genres", async (req, res) => {
+    try {
+      const p = jellyfinOrReject(res);
+      if (!p) return;
+      const limit = parseInt(req.query.limit as string) || 30;
+      res.json({ genres: (await p.getGenres?.(limit)) ?? [] });
+    } catch (err) {
+      logger.error({ err }, "Jellyfin genres failed");
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
+  router.get("/jellyfin/genre/:id/songs", async (req, res) => {
+    try {
+      const p = jellyfinOrReject(res);
+      if (!p) return;
+      const limit = parseInt(req.query.limit as string) || 100;
+      res.json({ songs: (await p.getGenreSongs?.(req.params.id, limit)) ?? [] });
+    } catch (err) {
+      logger.error({ err }, "Jellyfin genre songs failed");
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
   // Get current quality
   router.get("/quality", requireNotGuest, (_req, res) => {
     res.json({
@@ -303,6 +452,7 @@ export function createMusicRouter(
       local: localProvider?.getQuality() ?? "original",
       kugou: kugouProvider?.getQuality() ?? "128",
       spotify: spotifyProvider?.getQuality() ?? "320",
+      jellyfin: jellyfinProvider?.getQuality() ?? "direct",
     });
   });
 
@@ -328,6 +478,31 @@ export function createMusicRouter(
     if ((!platform || platform === "spotify") && spotifyProvider) {
       spotifyProvider.setQuality(quality);
     }
+    // Safe in the platform-less broadcast: JellyfinProvider.setQuality ignores
+    // values outside its own tier list (direct/320/192/128).
+    if ((!platform || platform === "jellyfin") && jellyfinProvider) {
+      jellyfinProvider.setQuality(quality);
+    }
+
+    // Persist the (post-apply) per-provider quality so it survives a restart
+    // (#125). Snapshotting each provider's getQuality() AFTER setQuality captures
+    // exactly what each one accepted (jellyfin ignores foreign tiers, kugou maps
+    // aliases), so replaying these on startup reproduces this state faithfully.
+    if (config && configPath) {
+      config.audioQuality = {
+        netease: neteaseProvider.getQuality(),
+        qq: qqProvider.getQuality(),
+        bilibili: bilibiliProvider.getQuality(),
+        kugou: kugouProvider?.getQuality() ?? config.audioQuality.kugou,
+        jellyfin: jellyfinProvider?.getQuality() ?? config.audioQuality.jellyfin,
+      };
+      try {
+        saveConfig(configPath, config);
+      } catch (err) {
+        logger.warn({ err }, "Failed to persist audio quality");
+      }
+    }
+
     logger.info({ quality, platform }, "Audio quality changed");
     res.json({ success: true, quality });
   });

src/web/api/player.ts

@@ -40,6 +40,10 @@ export function createPlayerRouter(
     if (platform === "qq") return "-q";
     if (platform === "youtube") return "-y";
     if (platform === "kugou") return "-k";
+    if (platform === "jellyfin") return "-j";
+    // The flag-less default is now the configured default platform (jellyfin
+    // unless disabled), so netease needs an explicit flag.
+    if (platform === "netease") return "-n";
     return "";
   };
 
@@ -121,7 +125,7 @@ export function createPlayerRouter(
         return;
       }
       const provider = bot.getProviderFor(
-        platform === "bilibili" || platform === "qq" || platform === "youtube" || platform === "local" || platform === "kugou"
+        platform === "bilibili" || platform === "qq" || platform === "youtube" || platform === "local" || platform === "kugou" || platform === "jellyfin"
           ? platform
           : "netease"
       );
@@ -296,7 +300,7 @@ export function createPlayerRouter(
       // Use the bot's own provider lookup — it already knows about youtube,
       // which the router's constructor params did not.
       const provider = bot.getProviderFor(
-        platform === "bilibili" || platform === "qq" || platform === "youtube" || platform === "local" || platform === "kugou"
+        platform === "bilibili" || platform === "qq" || platform === "youtube" || platform === "local" || platform === "kugou" || platform === "jellyfin"
           ? platform
           : "netease"
       );
@@ -389,7 +393,7 @@ export function createPlayerRouter(
         return;
       }
       const provider = bot.getProviderFor(
-        platform === "bilibili" || platform === "qq" || platform === "youtube" || platform === "local" || platform === "kugou"
+        platform === "bilibili" || platform === "qq" || platform === "youtube" || platform === "local" || platform === "kugou" || platform === "jellyfin"
           ? platform
           : "netease"
       );
@@ -620,7 +624,7 @@ export function createPlayerRouter(
         return;
       }
       const provider = bot.getProviderFor(
-        platform === "bilibili" || platform === "qq" || platform === "youtube" || platform === "local" || platform === "kugou"
+        platform === "bilibili" || platform === "qq" || platform === "youtube" || platform === "local" || platform === "kugou" || platform === "jellyfin"
           ? platform
           : "netease"
       );

src/web/robots.test.ts

@@ -0,0 +1,86 @@
+import { describe, it, expect } from "vitest";
+import express from "express";
+import request from "supertest";
+import fs from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+/**
+ * Search-engine hardening for issue #128: searching "TsmusicBot" surfaced a
+ * large number of deployed instances' WebUI URLs, letting strangers walk into
+ * other people's control pages. The fix is defence in depth — none of these
+ * layers is authentication (that's handled elsewhere), they just keep the
+ * public URL out of crawler indexes:
+ *
+ *   1. `X-Robots-Tag: noindex, nofollow` on EVERY response;
+ *   2. `GET /robots.txt` → `User-agent: * / Disallow: /`;
+ *   3. `<meta name="robots" content="noindex, nofollow">` in web/index.html.
+ *
+ * The header middleware and the /robots.txt route both live at the top of
+ * `createWebServer` in `server.ts`; this test asserts the exact behaviour we
+ * expect from them in isolation (the wiring inside server.ts is verified by
+ * code review / git diff, matching security-headers.test.ts).
+ */
+describe("search-engine hardening (issue #128 noindex)", () => {
+  function buildApp() {
+    const app = express();
+    // Mirrors the security-headers middleware in server.ts.
+    app.use((_req, res, next) => {
+      res.setHeader("X-Frame-Options", "DENY");
+      res.setHeader("Content-Security-Policy", "frame-ancestors 'none'");
+      res.setHeader("X-Robots-Tag", "noindex, nofollow");
+      next();
+    });
+    // Mirrors the public /robots.txt route in server.ts.
+    app.get("/robots.txt", (_req, res) => {
+      res.type("text/plain").send("User-agent: *\nDisallow: /\n");
+    });
+    app.get("/", (_req, res) => res.json({ ok: true }));
+    app.post("/api/session/login", (_req, res) => res.json({ ok: true }));
+    return app;
+  }
+
+  it("sets X-Robots-Tag: noindex, nofollow on GET responses", async () => {
+    const res = await request(buildApp()).get("/");
+    expect(res.status).toBe(200);
+    expect(res.headers["x-robots-tag"]).toBe("noindex, nofollow");
+  });
+
+  it("sets X-Robots-Tag on POST (API) responses too", async () => {
+    const res = await request(buildApp()).post("/api/session/login");
+    expect(res.headers["x-robots-tag"]).toBe("noindex, nofollow");
+  });
+
+  it("serves /robots.txt disallowing all crawlers", async () => {
+    const res = await request(buildApp()).get("/robots.txt");
+    expect(res.status).toBe(200);
+    expect(res.headers["content-type"]).toMatch(/text\/plain/);
+    expect(res.text).toContain("User-agent: *");
+    expect(res.text).toContain("Disallow: /");
+  });
+
+  it("still tags the /robots.txt response itself as noindex", async () => {
+    const res = await request(buildApp()).get("/robots.txt");
+    expect(res.headers["x-robots-tag"]).toBe("noindex, nofollow");
+  });
+});
+
+describe("frontend robots meta tag (issue #128 noindex)", () => {
+  const indexHtmlPath = path.resolve(
+    path.dirname(fileURLToPath(import.meta.url)),
+    "../../web/index.html"
+  );
+  const html = fs.readFileSync(indexHtmlPath, "utf-8");
+
+  const robotsMeta = html.match(
+    /<meta\s+name=["']robots["']\s+content=["']([^"']+)["']\s*\/?>/i
+  );
+
+  it("declares a robots meta tag", () => {
+    expect(robotsMeta).not.toBeNull();
+  });
+
+  it("marks the SPA shell noindex, nofollow (covers /bot/<id> dedicated links)", () => {
+    expect(robotsMeta?.[1]).toBe("noindex, nofollow");
+  });
+});

src/web/server.ts

@@ -22,6 +22,7 @@ import { createFavoritesRouter } from "./api/favorites.js";
 import { createSpotifyRouter } from "./api/spotify.js";
 import type { SpotifyOAuth } from "../music/spotify/spotify-oauth.js";
 import type { SpotifyProvider } from "../music/spotify/provider.js";
+import type { JellyfinProvider } from "../music/jellyfin.js";
 import { resolveSpotifyBackendKind } from "../music/spotify/backend-select.js";
 import {
   isGoLibrespotPresent,
@@ -49,6 +50,7 @@ export interface WebServerOptions {
   localProvider: MusicProvider;
   kugouProvider: MusicProvider;
   spotifyProvider: MusicProvider;
+  jellyfinProvider: MusicProvider;
   database: BotDatabase;
   config: BotConfig;
   configPath: string;
@@ -75,12 +77,19 @@ export function createWebServer(options: WebServerOptions): WebServer {
     app.set("trust proxy", true);
   }
 
-  // Security headers: prevent the WebUI from being embedded in a third-party
+  // Security headers:
-  // iframe (clickjacking defence). CSP frame-ancestors is the modern equivalent
+  //  • X-Frame-Options / CSP frame-ancestors — prevent the WebUI from being
-  // of X-Frame-Options; both are set for compatibility across browsers.
+  //    embedded in a third-party iframe (clickjacking defence). CSP
+  //    frame-ancestors is the modern equivalent of X-Frame-Options; both are
+  //    set for compatibility across browsers.
+  //  • X-Robots-Tag — keep deployed instances out of search-engine indexes
+  //    (issue #128: searching "TsmusicBot" surfaced strangers' WebUI URLs).
+  //    Set on EVERY response so JSON/API responses and the SPA shell are all
+  //    covered; complements /robots.txt and the <meta name="robots"> tag.
   app.use((_req, res, next) => {
     res.setHeader("X-Frame-Options", "DENY");
     res.setHeader("Content-Security-Policy", "frame-ancestors 'none'");
+    res.setHeader("X-Robots-Tag", "noindex, nofollow");
     next();
   });
 
@@ -93,6 +102,13 @@ export function createWebServer(options: WebServerOptions): WebServer {
   const permissions = createPermissionStore(options.database.db);
 
   // ─── Public routes (no auth, no CSRF) ───────────────────────────────────
+  // Disallow every crawler (issue #128). Declared before the static SPA
+  // fallback so this wins over index.html for /robots.txt. Belt-and-braces
+  // with the X-Robots-Tag header above and the <meta name="robots"> tag.
+  app.get("/robots.txt", (_req, res) => {
+    res.type("text/plain").send("User-agent: *\nDisallow: /\n");
+  });
+
   app.get("/api/health", (_req, res) => {
     res.json({ status: "ok", version: "0.1.0" });
   });
@@ -141,11 +157,15 @@ export function createWebServer(options: WebServerOptions): WebServer {
       // runtime object is a SpotifyProvider (see index.ts); WebServerOptions types
       // it as the wider MusicProvider, so narrow it here for the setCreds contract.
       options.spotifyProvider as SpotifyProvider,
+      // Same live-reconfigure contract for Jellyfin: a Settings save re-points
+      // the connection without a restart. Runtime object is a JellyfinProvider
+      // (see index.ts); WebServerOptions types it as the wider MusicProvider.
+      options.jellyfinProvider as JellyfinProvider,
     )
   );
   app.use(
     "/api/music",
-    createMusicRouter(options.neteaseProvider, options.qqProvider, options.bilibiliProvider, logger, options.localProvider, options.config, options.kugouProvider, options.spotifyProvider)
+    createMusicRouter(options.neteaseProvider, options.qqProvider, options.bilibiliProvider, logger, options.localProvider, options.config, options.kugouProvider, options.spotifyProvider, options.jellyfinProvider, options.configPath)
   );
   app.use("/api/player", createPlayerRouter(
     options.botManager, logger, options.database,
@@ -153,7 +173,7 @@ export function createWebServer(options: WebServerOptions): WebServer {
   ));
   app.use(
     "/api/auth",
-    createAuthRouter(options.neteaseProvider, options.qqProvider, options.bilibiliProvider, logger, options.cookieStore, options.kugouProvider, options.spotifyProvider)
+    createAuthRouter(options.neteaseProvider, options.qqProvider, options.bilibiliProvider, logger, options.cookieStore, options.kugouProvider, options.spotifyProvider, options.jellyfinProvider, options.config)
   );
   if (options.spotifyOAuth) {
     app.use(

web/index.html

@@ -3,6 +3,12 @@
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <!-- Keep deployed instances out of search-engine indexes (issue #128:
+       searching "TsmusicBot" surfaced strangers' WebUI URLs). Defence in depth
+       alongside the server's X-Robots-Tag header and /robots.txt. Applies to
+       the SPA shell and every in-app route (incl. /bot/<id> dedicated links),
+       since they all share this single index.html. -->
+  <meta name="robots" content="noindex, nofollow">
   <!-- Bilibili / NetEase / QQ image CDNs reject requests whose Referer is not on
        their whitelist, so we must not leak a Referer cross-origin. "same-origin"
        does exactly that: full Referer for our own requests, none for cross-origin

web/src/components/SongCard.vue

@@ -7,8 +7,8 @@
         <span class="song-name">{{ song.name }}</span>
         <span
           class="platform-badge"
-          :class="song.platform === 'bilibili' ? 'badge-bilibili' : song.platform === 'qq' ? 'badge-qq' : song.platform === 'youtube' ? 'badge-youtube' : song.platform === 'local' ? 'badge-local' : song.platform === 'kugou' ? 'badge-kugou' : song.platform === 'spotify' ? 'badge-spotify' : 'badge-netease'"
+          :class="song.platform === 'bilibili' ? 'badge-bilibili' : song.platform === 'qq' ? 'badge-qq' : song.platform === 'youtube' ? 'badge-youtube' : song.platform === 'local' ? 'badge-local' : song.platform === 'kugou' ? 'badge-kugou' : song.platform === 'spotify' ? 'badge-spotify' : song.platform === 'jellyfin' ? 'badge-jellyfin' : 'badge-netease'"
-        >{{ song.platform === 'bilibili' ? 'B站' : song.platform === 'qq' ? 'QQ' : song.platform === 'youtube' ? 'YouTube' : song.platform === 'local' ? '本地' : song.platform === 'kugou' ? '酷狗' : song.platform === 'spotify' ? 'Spotify' : '网易云' }}</span>
+        >{{ song.platform === 'bilibili' ? 'B站' : song.platform === 'qq' ? 'QQ' : song.platform === 'youtube' ? 'YouTube' : song.platform === 'local' ? '本地' : song.platform === 'kugou' ? '酷狗' : song.platform === 'spotify' ? 'Spotify' : song.platform === 'jellyfin' ? 'Jellyfin' : '网易云' }}</span>
         <span
           v-if="song.requestedBy"
           class="requester-badge"
@@ -175,6 +175,11 @@ function formatDuration(seconds: number): string {
   color: var(--brand-spotify);
 }
 
+.badge-jellyfin {
+  background: var(--brand-jellyfin-12);
+  color: var(--brand-jellyfin);
+}
+
 .song-artist {
   font-size: 12px;
   color: var(--text-secondary);

web/src/components/SourceTabs.vue

@@ -22,6 +22,7 @@
 import type { Source } from '../stores/player.js';
 
 const LABELS: Record<Source, string> = {
+  jellyfin: 'Jellyfin',
   netease: '网易云',
   qq: 'QQ',
   kugou: '酷狗',

web/src/stores/player.ts

@@ -10,12 +10,21 @@ export interface Song {
   album: string;
   duration: number;
   coverUrl: string;
-  platform: 'netease' | 'qq' | 'bilibili' | 'youtube' | 'local' | 'kugou' | 'spotify';
+  platform: 'netease' | 'qq' | 'bilibili' | 'youtube' | 'local' | 'kugou' | 'spotify' | 'jellyfin';
   requestedBy?: string;
   playedAt?: string;
 }
 
-export type Source = 'netease' | 'qq' | 'kugou' | 'spotify';
+export type Source = 'jellyfin' | 'netease' | 'qq' | 'kugou' | 'spotify';
+
+export interface AlbumItem {
+  id: string;
+  name: string;
+  artist: string;
+  coverUrl: string;
+  songCount: number;
+  platform: string;
+}
 
 export interface BotStatus {
   id: string;
@@ -101,12 +110,22 @@ export const usePlayerStore = defineStore('player', {
     timings: {} as Record<string, TimingState>,
     theme: 'dark' as 'dark' | 'light',
 
+    // Which sources the server has enabled (GET /api/music/providers) and the
+    // configured default. Empty until fetched — sections stay hidden briefly.
+    enabledProviders: [] as string[],
+    defaultSource: 'netease' as string,
+
     // Home page cache, split by source
     recommendPlaylists: { netease: [] as PlaylistItem[], qq: [] as PlaylistItem[], kugou: [] as PlaylistItem[], spotify: [] as PlaylistItem[] },
     dailySongs:         { netease: [] as Song[],         qq: [] as Song[],         kugou: [] as Song[], spotify: [] as Song[] },
-    userPlaylists:      { netease: [] as PlaylistItem[], qq: [] as PlaylistItem[], kugou: [] as PlaylistItem[], spotify: [] as PlaylistItem[] },
+    userPlaylists:      { jellyfin: [] as PlaylistItem[], netease: [] as PlaylistItem[], qq: [] as PlaylistItem[], kugou: [] as PlaylistItem[], spotify: [] as PlaylistItem[] },
     bilibiliPopular: [] as Song[],
-    authStatus: { netease: false, qq: false, kugou: false, spotify: false },
+    // Jellyfin home sections (shown only when the optional source is enabled)
+    jellyfinLatestAlbums: [] as AlbumItem[],
+    jellyfinMostPlayed: [] as Song[],
+    jellyfinFavorites: [] as Song[],
+    jellyfinGenres: [] as { id: string; name: string }[],
+    authStatus: { jellyfin: false, netease: false, qq: false, kugou: false, spotify: false },
     lastFetchTime: 0,
 
     // Favorited playlists (fetched from server, isolated per WebUI user)
@@ -154,15 +173,20 @@ export const usePlayerStore = defineStore('player', {
       const maxDuration = this.activeBot.currentSong.duration || Infinity;
       return interpolateElapsed(timing, this.isPaused, maxDuration);
     },
-    /** Sources that are currently logged in. Order: netease before qq. */
+    /** Sources that are currently logged in. Jellyfin (when enabled) leads. */
     availableSources(): Source[] {
       const s: Source[] = [];
+      if (this.authStatus.jellyfin) s.push('jellyfin');
       if (this.authStatus.netease) s.push('netease');
       if (this.authStatus.qq) s.push('qq');
       if (this.authStatus.kugou) s.push('kugou');
       if (this.authStatus.spotify) s.push('spotify');
       return s;
     },
+    /** Whether a source is enabled server-side (enabledProviders gate). */
+    sourceEnabled(): (platform: string) => boolean {
+      return (platform: string) => this.enabledProviders.includes(platform);
+    },
   },
 
   actions: {
@@ -571,27 +595,50 @@ export const usePlayerStore = defineStore('player', {
       return this.favoritedPlaylists.some((f) => f.playlistId === playlistId && f.platform === platform);
     },
 
+    /** Load the server-side source gate (enabledProviders + default). */
+    async fetchProviders() {
+      try {
+        const res = await axios.get('/api/music/providers');
+        this.enabledProviders = res.data.enabled ?? [];
+        if (typeof res.data.default === 'string') this.defaultSource = res.data.default;
+      } catch {
+        // keep previous values (backend briefly unavailable)
+      }
+    },
+
     async fetchHomeData() {
+      // The provider gate decides which sources to even ask about — disabled
+      // sources are skipped entirely (their sidecars may not be running).
+      await this.fetchProviders();
+      const has = (p: string) => this.enabledProviders.includes(p);
+      const skip = Promise.reject(new Error('provider disabled'));
+      // Pre-rejected sentinel: mark handled so it never surfaces as unhandled.
+      skip.catch(() => {});
+
       // Always check auth status first — if it changed since the cached
       // fetch (e.g., user logged in/out as a different account), the
       // cached playlists belong to a different user and we MUST refetch.
-      const [neAuthRes, qqAuthRes, kugouAuthRes, spAuthRes] = await Promise.allSettled([
+      const [jfAuthRes, neAuthRes, qqAuthRes, kugouAuthRes, spAuthRes] = await Promise.allSettled([
-        axios.get('/api/auth/status', { params: { platform: 'netease' } }),
+        has('jellyfin') ? axios.get('/api/auth/status', { params: { platform: 'jellyfin' } }) : skip,
-        axios.get('/api/auth/status', { params: { platform: 'qq' } }),
+        has('netease') ? axios.get('/api/auth/status', { params: { platform: 'netease' } }) : skip,
-        axios.get('/api/auth/status', { params: { platform: 'kugou' } }),
+        has('qq') ? axios.get('/api/auth/status', { params: { platform: 'qq' } }) : skip,
-        axios.get('/api/auth/status', { params: { platform: 'spotify' } }),
+        has('kugou') ? axios.get('/api/auth/status', { params: { platform: 'kugou' } }) : skip,
+        has('spotify') ? axios.get('/api/auth/status', { params: { platform: 'spotify' } }) : skip,
       ]);
       const newAuth = {
+        jellyfin: jfAuthRes.status === 'fulfilled' && !!jfAuthRes.value.data?.loggedIn,
         netease: neAuthRes.status === 'fulfilled' && !!neAuthRes.value.data?.loggedIn,
         qq:      qqAuthRes.status === 'fulfilled' && !!qqAuthRes.value.data?.loggedIn,
         kugou:   kugouAuthRes.status === 'fulfilled' && !!kugouAuthRes.value.data?.loggedIn,
         spotify: spAuthRes.status === 'fulfilled' && !!spAuthRes.value.data?.loggedIn,
       };
       const authChanged =
+        newAuth.jellyfin !== this.authStatus.jellyfin ||
         newAuth.netease !== this.authStatus.netease ||
         newAuth.qq !== this.authStatus.qq ||
         newAuth.kugou !== this.authStatus.kugou ||
         newAuth.spotify !== this.authStatus.spotify;
+      this.authStatus.jellyfin = newAuth.jellyfin;
       this.authStatus.netease = newAuth.netease;
       this.authStatus.qq = newAuth.qq;
       this.authStatus.kugou = newAuth.kugou;
@@ -612,17 +659,23 @@ export const usePlayerStore = defineStore('player', {
 
       // 2. NetEase data: recommend playlists work anonymously; daily/user
       // playlists need login but Promise.allSettled isolates failures.
-      const neteasePromises = [
+      const emptyPlaylists = { data: { playlists: [] } };
-        axios.get('/api/music/recommend/playlists', { params: { platform: 'netease' } }),
+      const emptySongs     = { data: { songs: [] } };
-        axios.get('/api/music/recommend/songs',     { params: { platform: 'netease' } }),
+      const neteasePromises = has('netease')
-        axios.get('/api/music/user/playlists',      { params: { platform: 'netease' } }),
+        ? [
-      ];
+            axios.get('/api/music/recommend/playlists', { params: { platform: 'netease' } }),
+            axios.get('/api/music/recommend/songs',     { params: { platform: 'netease' } }),
+            axios.get('/api/music/user/playlists',      { params: { platform: 'netease' } }),
+          ]
+        : [
+            Promise.resolve(emptyPlaylists),
+            Promise.resolve(emptySongs),
+            Promise.resolve(emptyPlaylists),
+          ];
 
       // 3. QQ data: only fetch when QQ is logged in. When not logged in,
       // resolve to empty payloads so the same indexed handling works.
-      const emptyPlaylists = { data: { playlists: [] } };
+      const qqPromises = has('qq') && this.authStatus.qq
-      const emptySongs     = { data: { songs: [] } };
-      const qqPromises = this.authStatus.qq
         ? [
             axios.get('/api/music/recommend/playlists', { params: { platform: 'qq' } }),
             axios.get('/api/music/recommend/songs',     { params: { platform: 'qq' } }),
@@ -636,7 +689,7 @@ export const usePlayerStore = defineStore('player', {
 
       // 4. Kugou data: every section (incl. recommend playlists) needs login,
       // so gate all three on auth like QQ.
-      const kugouPromises = this.authStatus.kugou
+      const kugouPromises = has('kugou') && this.authStatus.kugou
         ? [
             axios.get('/api/music/recommend/playlists', { params: { platform: 'kugou' } }),
             axios.get('/api/music/recommend/songs',     { params: { platform: 'kugou' } }),
@@ -648,16 +701,49 @@ export const usePlayerStore = defineStore('player', {
             Promise.resolve(emptyPlaylists),
           ];
 
-      const biliPromise = axios.get('/api/music/bilibili/popular?limit=12');
+      const biliPromise = has('bilibili')
+        ? axios.get('/api/music/bilibili/popular?limit=12')
+        : Promise.resolve(emptySongs);
+
+      // 5. Jellyfin home sections. Favorites are guest-blocked server-side;
+      // allSettled turns that 403 into an empty section.
+      const jellyfinPromises = has('jellyfin')
+        ? [
+            axios.get('/api/music/jellyfin/latest-albums', { params: { limit: 12 } }),
+            axios.get('/api/music/jellyfin/most-played',   { params: { limit: 12 } }),
+            axios.get('/api/music/jellyfin/favorites',     { params: { limit: 12 } }),
+            axios.get('/api/music/jellyfin/genres'),
+            axios.get('/api/music/user/playlists',         { params: { platform: 'jellyfin' } }),
+          ]
+        : [
+            Promise.resolve({ data: { albums: [] } }),
+            Promise.resolve(emptySongs),
+            Promise.resolve(emptySongs),
+            Promise.resolve({ data: { genres: [] } }),
+            Promise.resolve(emptyPlaylists),
+          ];
 
       const results = await Promise.allSettled([
         ...neteasePromises,
         ...qqPromises,
         ...kugouPromises,
         biliPromise,
+        ...jellyfinPromises,
       ]);
 
-      const [neRecPL, neDaily, neUserPL, qqRecPL, qqDaily, qqUserPL, kgRecPL, kgDaily, kgUserPL, bili] = results;
+      const [neRecPL, neDaily, neUserPL, qqRecPL, qqDaily, qqUserPL, kgRecPL, kgDaily, kgUserPL, bili,
+        jfLatest, jfMost, jfFav, jfGenres, jfUserPL] = results;
+
+      this.jellyfinLatestAlbums =
+        jfLatest.status === 'fulfilled' ? (jfLatest.value.data.albums ?? []) : [];
+      this.jellyfinMostPlayed =
+        jfMost.status === 'fulfilled' ? (jfMost.value.data.songs ?? []) : [];
+      this.jellyfinFavorites =
+        jfFav.status === 'fulfilled' ? (jfFav.value.data.songs ?? []) : [];
+      this.jellyfinGenres =
+        jfGenres.status === 'fulfilled' ? (jfGenres.value.data.genres ?? []) : [];
+      this.userPlaylists.jellyfin =
+        jfUserPL.status === 'fulfilled' ? (jfUserPL.value.data.playlists ?? []) : [];
 
       this.recommendPlaylists.netease =
         neRecPL.status === 'fulfilled' ? (neRecPL.value.data.playlists ?? []) : [];
@@ -686,8 +772,10 @@ export const usePlayerStore = defineStore('player', {
       // Only mark as fetched if at least the auth-status calls succeeded —
       // a fully failed fetch (network blip / server down) should NOT be
       // cached for 5 minutes, otherwise the user has to hard-reload to
-      // recover when connectivity returns.
+      // recover when connectivity returns. (Disabled providers' checks are
+      // pre-rejected sentinels, so only enabled ones can vouch here.)
       const authOk =
+        jfAuthRes.status === 'fulfilled' ||
         neAuthRes.status === 'fulfilled' ||
         qqAuthRes.status === 'fulfilled' ||
         kugouAuthRes.status === 'fulfilled';
@@ -695,5 +783,32 @@ export const usePlayerStore = defineStore('player', {
         this.lastFetchTime = Date.now();
       }
     },
+
+    /**
+     * Play a whole Jellyfin genre: fetch its tracks, start the first, queue
+     * the rest. There is no bulk-queue endpoint, so the remainder is appended
+     * sequentially — capped at 30 tracks to keep the request burst small.
+     */
+    async playJellyfinGenre(genreId: string) {
+      if (!this.activeBotId) return;
+      try {
+        const res = await axios.get(`/api/music/jellyfin/genre/${genreId}/songs`, {
+          params: { limit: 30 },
+        });
+        const songs: Song[] = res.data.songs ?? [];
+        if (songs.length === 0) {
+          this.notify('该流派下没有曲目', 'info');
+          return;
+        }
+        await this.playSong(songs[0]);
+        for (const song of songs.slice(1)) {
+          await this.addSong(song);
+        }
+        this.notify(`已加入 ${songs.length} 首`, 'info');
+        this.fetchQueue();
+      } catch {
+        this.notify('播放流派失败', 'error');
+      }
+    },
   },
 });

web/src/stores/sourceTabs.ts

@@ -28,7 +28,7 @@ function readAll(): Partial<Record<TabKey, Source>> {
 export function loadTabSource(key: TabKey, fallback: Source = 'netease'): Source {
   const all = readAll();
   const v = all[key];
-  return v === 'netease' || v === 'qq' || v === 'kugou' || v === 'spotify' ? v : fallback;
+  return v === 'jellyfin' || v === 'netease' || v === 'qq' || v === 'kugou' || v === 'spotify' ? v : fallback;
 }
 
 export function saveTabSource(key: TabKey, value: Source): void {

web/src/styles/variables.scss

@@ -84,6 +84,8 @@
   --brand-kugou-12: rgba(44, 162, 249, 0.12);
   --brand-spotify: #1DB954;
   --brand-spotify-12: rgba(29, 185, 84, 0.12);
+  --brand-jellyfin: #aa5cc3;
+  --brand-jellyfin-12: rgba(170, 92, 195, 0.12);
 }
 
 // Dark theme (default)

web/src/views/Home.vue

@@ -18,10 +18,20 @@
       </div>
     </section>
 
-    <!-- 私人FM -->
+    <!-- 私人FM（音源按 enabledProviders 门控；Jellyfin 电台优先） -->
-    <section class="section">
+    <section v-if="fmCardCount > 0" class="section">
       <h2 class="section-title">私人FM</h2>
-      <div class="fm-card hover-scale" @click="playFm('netease')">
+      <div v-if="enabled('jellyfin')" class="fm-card hover-scale" @click="playFm('jellyfin')">
+        <div class="fm-icon-wrapper jellyfin">
+          <Icon icon="mdi:jellyfish" class="fm-icon" />
+        </div>
+        <div class="fm-info">
+          <div class="fm-title">Jellyfin 电台</div>
+          <div class="fm-desc">从收藏出发的 Instant Mix 歌曲流</div>
+        </div>
+        <Icon icon="mdi:play-circle" class="fm-play-icon" />
+      </div>
+      <div v-if="enabled('netease')" class="fm-card hover-scale" @click="playFm('netease')">
         <div class="fm-icon-wrapper">
           <Icon icon="mdi:radio" class="fm-icon" />
         </div>
@@ -31,7 +41,7 @@
         </div>
         <Icon icon="mdi:play-circle" class="fm-play-icon" />
       </div>
-      <div v-if="store.authStatus.qq" class="fm-card hover-scale" @click="playFm('qq')">
+      <div v-if="enabled('qq') && store.authStatus.qq" class="fm-card hover-scale" @click="playFm('qq')">
         <div class="fm-icon-wrapper qq">
           <Icon icon="mdi:radar" class="fm-icon" />
         </div>
@@ -41,7 +51,7 @@
         </div>
         <Icon icon="mdi:play-circle" class="fm-play-icon" />
       </div>
-      <div v-if="store.authStatus.kugou" class="fm-card hover-scale" @click="playFm('kugou')">
+      <div v-if="enabled('kugou') && store.authStatus.kugou" class="fm-card hover-scale" @click="playFm('kugou')">
         <div class="fm-icon-wrapper kugou">
           <Icon icon="mdi:radio-tower" class="fm-icon" />
         </div>
@@ -53,6 +63,76 @@
       </div>
     </section>
 
+    <!-- Jellyfin: 最近添加 -->
+    <section class="section" v-if="store.jellyfinLatestAlbums.length > 0">
+      <h2 class="section-title">最近添加</h2>
+      <div class="playlist-grid">
+        <RouterLink
+          v-for="al in store.jellyfinLatestAlbums"
+          :key="al.id"
+          :to="`/album/${al.id}?platform=jellyfin`"
+          class="playlist-card hover-scale"
+        >
+          <CoverArt :url="al.coverUrl" :size="160" :radius="10" :show-shadow="true" />
+          <div class="playlist-name">{{ al.name }}</div>
+          <div class="playlist-count">{{ al.artist }}</div>
+        </RouterLink>
+      </div>
+    </section>
+
+    <!-- Jellyfin: 播放最多 -->
+    <section class="section" v-if="store.jellyfinMostPlayed.length > 0">
+      <h2 class="section-title">播放最多</h2>
+      <div class="daily-grid">
+        <div
+          v-for="song in store.jellyfinMostPlayed"
+          :key="song.id"
+          class="daily-card hover-scale"
+          @click="store.playSong(song)"
+        >
+          <CoverArt :url="song.coverUrl" :size="120" :radius="10" :show-shadow="true" />
+          <div class="daily-name">{{ song.name }}</div>
+          <div class="daily-artist">{{ song.artist }}</div>
+        </div>
+      </div>
+    </section>
+
+    <!-- Jellyfin: 收藏曲目 -->
+    <section class="section" v-if="store.jellyfinFavorites.length > 0">
+      <h2 class="section-title">
+        <Icon icon="mdi:star" style="color: var(--brand-jellyfin)" />
+        Jellyfin 收藏
+      </h2>
+      <div class="daily-grid">
+        <div
+          v-for="song in store.jellyfinFavorites"
+          :key="song.id"
+          class="daily-card hover-scale"
+          @click="store.playSong(song)"
+        >
+          <CoverArt :url="song.coverUrl" :size="120" :radius="10" :show-shadow="true" />
+          <div class="daily-name">{{ song.name }}</div>
+          <div class="daily-artist">{{ song.artist }}</div>
+        </div>
+      </div>
+    </section>
+
+    <!-- Jellyfin: 流派 -->
+    <section class="section" v-if="store.jellyfinGenres.length > 0">
+      <h2 class="section-title">流派</h2>
+      <div class="genre-chips">
+        <button
+          v-for="g in store.jellyfinGenres"
+          :key="g.id"
+          class="genre-chip"
+          @click="store.playJellyfinGenre(g.id)"
+        >
+          <Icon icon="mdi:music-note" />
+          {{ g.name }}
+        </button>
+      </div>
+    </section>
+
     <!-- 每日推荐 -->
     <section class="section" v-if="dailyAvailable.length > 0">
       <h2 class="section-title">
@@ -177,16 +257,31 @@ const store = usePlayerStore();
 const USER_PLAYLIST_LIMIT = 20;
 const userPlaylistsExpanded = ref(false);
 
-// Available sources per section.
+// Server-side source gate (enabledProviders).
-// Recommend playlists work anonymously on netease, so it's always available;
+const enabled = (p: string) => store.enabledProviders.includes(p);
+const fmCardCount = computed(() =>
+  ['jellyfin', 'netease'].filter(enabled).length +
+  (enabled('qq') && store.authStatus.qq ? 1 : 0) +
+  (enabled('kugou') && store.authStatus.kugou ? 1 : 0),
+);
+
+// Available sources per section. Jellyfin has no daily/recommend concept —
+// it gets its own home sections instead — so those two tab bars only ever
+// carry the legacy sources (which is also what their store maps are keyed by).
+type LegacySource = Exclude<Source, 'jellyfin'>;
+
+// Recommend playlists work anonymously on netease (when enabled);
 // QQ requires login. This intentionally differs from dailyAvailable/userAvailable.
-const recommendAvailable = computed<Source[]>(() => {
+const recommendAvailable = computed<LegacySource[]>(() => {
-  const s: Source[] = ['netease'];
+  const s: LegacySource[] = [];
-  if (store.authStatus.qq) s.push('qq');
+  if (enabled('netease')) s.push('netease');
-  if (store.authStatus.kugou) s.push('kugou');
+  if (enabled('qq') && store.authStatus.qq) s.push('qq');
+  if (enabled('kugou') && store.authStatus.kugou) s.push('kugou');
   return s;
 });
-const dailyAvailable = computed<Source[]>(() => store.availableSources);
+const dailyAvailable = computed<LegacySource[]>(() =>
+  store.availableSources.filter((s): s is LegacySource => s !== 'jellyfin'),
+);
 const userAvailable = computed<Source[]>(() => store.availableSources);
 
 // Persisted active source per section.
@@ -199,14 +294,14 @@ watch(dailySource,     (v) => saveTabSource('home.daily',     v));
 watch(userSource,      (v) => saveTabSource('home.user',      v));
 
 // Fallback when persisted source is no longer available.
-const recommendSourceSafe = computed<Source>(() =>
+const recommendSourceSafe = computed<LegacySource>(() =>
-  recommendAvailable.value.includes(recommendSource.value)
+  (recommendAvailable.value as Source[]).includes(recommendSource.value)
-    ? recommendSource.value
+    ? (recommendSource.value as LegacySource)
     : recommendAvailable.value[0] ?? 'netease'
 );
-const dailySourceSafe = computed<Source>(() =>
+const dailySourceSafe = computed<LegacySource>(() =>
-  dailyAvailable.value.includes(dailySource.value)
+  (dailyAvailable.value as Source[]).includes(dailySource.value)
-    ? dailySource.value
+    ? (dailySource.value as LegacySource)
     : dailyAvailable.value[0] ?? 'netease'
 );
 const userSourceSafe = computed<Source>(() =>
@@ -373,6 +468,11 @@ onMounted(() => {
   &.kugou {
     background: linear-gradient(135deg, var(--brand-kugou), #1d7fd1);
   }
+
+  // Jellyfin's brand gradient (purple → blue).
+  &.jellyfin {
+    background: linear-gradient(135deg, var(--brand-jellyfin), #00a4dc);
+  }
 }
 
 .fm-icon {
@@ -472,4 +572,30 @@ onMounted(() => {
   color: var(--text-tertiary);
   margin-top: 2px;
 }
+
+// Jellyfin 流派
+.genre-chips {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+}
+
+.genre-chip {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 8px 16px;
+  background: var(--bg-card);
+  border-radius: 999px;
+  font-size: 13px;
+  font-weight: 500;
+  color: var(--text-secondary);
+  cursor: pointer;
+  transition: all var(--transition-fast);
+
+  &:hover {
+    color: var(--brand-jellyfin);
+    background: var(--brand-jellyfin-12);
+  }
+}
 </style>

web/src/views/Search.vue

@@ -56,23 +56,35 @@
     <div v-if="loading" class="loading">搜索中...</div>
 
     <template v-else-if="allSongs.length || allAlbums.length || allPlaylists.length">
+      <!-- Only enabled sources are offered (enabledProviders gate); Jellyfin
+           (opt-in) comes first when enabled. -->
       <div class="source-bar">
         <button
+          v-if="sourceEnabled('jellyfin')"
+          class="source-btn"
+          :class="{ active: selectedSource === 'jellyfin' }"
+          @click="selectedSource = 'jellyfin'"
+        >Jellyfin</button>
+        <button
+          v-if="sourceEnabled('netease')"
           class="source-btn"
           :class="{ active: selectedSource === 'netease' }"
           @click="selectedSource = 'netease'"
         >网易云</button>
         <button
+          v-if="sourceEnabled('qq')"
           class="source-btn"
           :class="{ active: selectedSource === 'qq' }"
           @click="selectedSource = 'qq'"
         >QQ</button>
         <button
+          v-if="sourceEnabled('bilibili')"
           class="source-btn"
           :class="{ active: selectedSource === 'bilibili' }"
           @click="selectedSource = 'bilibili'"
         >B站</button>
         <button
+          v-if="sourceEnabled('kugou')"
           class="source-btn"
           :class="{ active: selectedSource === 'kugou' }"
           @click="selectedSource = 'kugou'"
@@ -197,12 +209,14 @@ const router = useRouter();
 
 const SOURCE_STORAGE_KEY = 'search-source';
 
-type SearchSource = 'netease' | 'qq' | 'bilibili' | 'local' | 'kugou';
+type SearchSource = 'jellyfin' | 'netease' | 'qq' | 'bilibili' | 'local' | 'kugou';
+
+const SEARCH_SOURCES: SearchSource[] = ['jellyfin', 'netease', 'qq', 'bilibili', 'local', 'kugou'];
 
 function loadSource(): SearchSource {
   try {
     const stored = localStorage.getItem(SOURCE_STORAGE_KEY);
-    if (stored === 'netease' || stored === 'qq' || stored === 'bilibili' || stored === 'local' || stored === 'kugou') return stored;
+    if (SEARCH_SOURCES.includes(stored as SearchSource)) return stored as SearchSource;
   } catch { /* localStorage blocked */ }
   return 'netease';
 }
@@ -245,6 +259,22 @@ const filteredPlaylists = computed(() =>
 
 const hasLocalSongs = computed(() => localAudioEnabled.value && allSongs.value.some((s) => s.platform === 'local'));
 
+// Server-side source gate (enabledProviders). Until /providers loads, the
+// store list is empty — treat that as "everything shown" so a slow request
+// doesn't blank the bar.
+function sourceEnabled(p: string): boolean {
+  return store.enabledProviders.length === 0 || store.enabledProviders.includes(p);
+}
+
+/** Snap a disabled/stale selection to the configured default (or first enabled). */
+function fixupSelectedSource() {
+  if (selectedSource.value === 'local' || sourceEnabled(selectedSource.value)) return;
+  const def = store.defaultSource as SearchSource;
+  selectedSource.value = SEARCH_SOURCES.includes(def) && sourceEnabled(def)
+    ? def
+    : SEARCH_SOURCES.find((s) => s !== 'local' && sourceEnabled(s)) ?? 'netease';
+}
+
 // ---- 分页 / 加载更多 ----
 function pageKey(type: TabType, source: string): string {
   return `${type}:${source}`;
@@ -451,6 +481,7 @@ function badgeLabel(platform: string): string {
   if (platform === 'youtube') return 'YouTube';
   if (platform === 'local') return '本地';
   if (platform === 'kugou') return '酷狗';
+  if (platform === 'jellyfin') return 'Jellyfin';
   return '网易云';
 }
 
@@ -460,6 +491,7 @@ function badgeClass(platform: string): string {
   if (platform === 'youtube') return 'badge-youtube';
   if (platform === 'local') return 'badge-local';
   if (platform === 'kugou') return 'badge-kugou';
+  if (platform === 'jellyfin') return 'badge-jellyfin';
   return 'badge-netease';
 }
 
@@ -475,9 +507,11 @@ async function loadLocalAudioSetting() {
   }
 }
 
-onMounted(() => {
+onMounted(async () => {
   loadLocalAudioSetting();
   if (query.value) doSearch();
+  await store.fetchProviders();
+  fixupSelectedSource();
 });
 </script>
 
@@ -790,6 +824,11 @@ onMounted(() => {
   color: var(--brand-kugou);
 }
 
+.badge-jellyfin {
+  background: var(--brand-jellyfin-12);
+  color: var(--brand-jellyfin);
+}
+
 .fav-badge {
   position: absolute;
   top: 8px;

web/src/views/Settings.vue

@@ -165,12 +165,118 @@
       </div>
     </section>
 
-    <!-- Music Account - QR Code Login (platform auth) requires platform.auth -->
+    <!-- Jellyfin — optional self-hosted music source. Admin-configured
+         connection (server URL + credentials), no QR flow. The card stays
+         visible even while the source is disabled: the enable toggle below is
+         the only UI that flips its enabledProviders membership, so hiding the
+         card would leave no way to turn Jellyfin on. -->
     <section v-if="can('platform.auth')" class="settings-section">
+      <h2 class="section-title">Jellyfin 音乐库（可选）</h2>
+
+      <div class="account-card">
+        <div class="account-header">
+          <Icon icon="mdi:jellyfish" class="account-icon jellyfin-icon" />
+          <div class="account-info">
+            <div class="account-name">Jellyfin</div>
+            <div class="account-status" :class="{ logged: jellyfinAuth.loggedIn }">
+              {{ jellyfinAuth.loggedIn ? `已连接: ${jellyfinAuth.nickname}` : '未连接' }}
+            </div>
+          </div>
+        </div>
+
+        <!-- Enable (opt-in source: presence in enabledProviders) -->
+        <label class="profile-toggle behavior-toggle spotify-toggle">
+          <div class="profile-toggle-text">
+            <div class="profile-toggle-label">启用 Jellyfin 音源</div>
+            <div class="profile-toggle-hint">开启后 Jellyfin 出现在搜索、首页与聊天命令（!play -j）的音源列表中。默认关闭，点击下方「保存」后生效。</div>
+          </div>
+          <input v-model="jellyfinEnabledForm" type="checkbox" class="profile-toggle-switch" />
+        </label>
+
+        <div class="form-group">
+          <label>服务器地址</label>
+          <input v-model="jellyfinForm.serverUrl" class="input" autocomplete="off" placeholder="https://jellyfin.example.com" />
+        </div>
+
+        <div class="setting-row spotify-row">
+          <div class="setting-label">认证方式</div>
+          <div class="spotify-btn-group">
+            <button
+              class="spotify-choice"
+              :class="{ active: jellyfinForm.authMode === 'userpass' }"
+              @click="jellyfinForm.authMode = 'userpass'"
+            >账号密码</button>
+            <button
+              class="spotify-choice"
+              :class="{ active: jellyfinForm.authMode === 'apikey' }"
+              @click="jellyfinForm.authMode = 'apikey'"
+            >API Key</button>
+          </div>
+        </div>
+
+        <template v-if="jellyfinForm.authMode === 'userpass'">
+          <div class="form-group">
+            <label>用户名</label>
+            <input v-model="jellyfinForm.username" class="input" autocomplete="off" placeholder="Jellyfin 用户名" />
+          </div>
+          <div class="form-group">
+            <label>
+              密码
+              <span class="spotify-secret-hint" :class="{ set: jellyfinHasPassword }">
+                {{ jellyfinHasPassword ? '已设置' : '未设置' }}
+              </span>
+            </label>
+            <input
+              v-model="jellyfinForm.password"
+              class="input"
+              type="password"
+              autocomplete="off"
+              placeholder="留空表示不修改已保存的密码"
+            />
+          </div>
+        </template>
+        <template v-else>
+          <div class="form-group">
+            <label>
+              API Key
+              <span class="spotify-secret-hint" :class="{ set: jellyfinHasApiKey }">
+                {{ jellyfinHasApiKey ? '已设置' : '未设置' }}
+              </span>
+            </label>
+            <input
+              v-model="jellyfinForm.apiKey"
+              class="input"
+              type="password"
+              autocomplete="off"
+              placeholder="留空表示不修改已保存的 API Key"
+            />
+          </div>
+          <div class="form-group">
+            <label>用户 ID</label>
+            <input v-model="jellyfinForm.userId" class="input" autocomplete="off" placeholder="该 Key 对应使用的 Jellyfin 用户 ID" />
+          </div>
+        </template>
+
+        <div class="spotify-actions">
+          <button class="btn-secondary" :disabled="jellyfinTesting" @click="testJellyfin">
+            {{ jellyfinTesting ? '测试中…' : '测试连接' }}
+          </button>
+          <button class="btn-primary" :disabled="jellyfinSaving" @click="saveJellyfin">
+            {{ jellyfinSaving ? '保存中…' : '保存' }}
+          </button>
+        </div>
+
+        <p v-if="jellyfinMessage" class="spotify-message" :class="`tone-${jellyfinMessageTone}`">{{ jellyfinMessage }}</p>
+      </div>
+    </section>
+
+    <!-- Music Account - QR Code Login (platform auth) requires platform.auth.
+         Cards for sources disabled via enabledProviders are hidden. -->
+    <section v-if="can('platform.auth') && (providerOn('netease') || providerOn('qq') || providerOn('bilibili') || providerOn('kugou'))" class="settings-section">
       <h2 class="section-title">音乐账号</h2>
 
       <!-- NetEase -->
-      <div class="account-card">
+      <div v-if="providerOn('netease')" class="account-card">
         <div class="account-header">
           <Icon icon="mdi:cloud-outline" class="account-icon" />
           <div class="account-info">
@@ -240,7 +346,7 @@
       </div>
 
       <!-- QQ Music -->
-      <div class="account-card">
+      <div v-if="providerOn('qq')" class="account-card">
         <div class="account-header">
           <Icon icon="mdi:music-circle-outline" class="account-icon" />
           <div class="account-info">
@@ -309,7 +415,7 @@
         </div>
       </div>
       <!-- BiliBili -->
-      <div class="account-card">
+      <div v-if="providerOn('bilibili')" class="account-card">
         <div class="account-header">
           <Icon icon="mdi:video-outline" class="account-icon bilibili-icon" />
           <div class="account-info">
@@ -379,7 +485,7 @@
       </div>
 
       <!-- Kugou -->
-      <div class="account-card">
+      <div v-if="providerOn('kugou')" class="account-card">
         <div class="account-header">
           <Icon icon="mdi:music-circle-outline" class="account-icon kugou-icon" />
           <div class="account-info">
@@ -449,6 +555,36 @@
       </div>
     </section>
 
+    <!-- Default music source (issue #126): the source used by chat commands
+         (!play/!add …) and the WebUI when no platform flag is given. Saving is a
+         global bot setting, so gate on bot.manage like the other behavior rows. -->
+    <section v-if="can('bot.manage')" class="settings-section">
+      <h2 class="section-title">默认音源</h2>
+      <p class="profile-section-hint">
+        设置不带音源参数时（如聊天里的 <code>!play 歌名</code> 或网页搜索）默认使用的音源。
+        例如把默认音源设为「哔哩哔哩」后，点播 B 站音乐就不用每次都加 <code>-b</code>。
+        选择「自动」则按内置优先级挑选第一个已启用的音源（网易云 → QQ → 酷狗 → Jellyfin → 哔哩哔哩 → YouTube）。
+      </p>
+      <div class="setting-row">
+        <div class="setting-label">
+          <Icon icon="mdi:music-box-multiple-outline" class="setting-icon" />
+          默认音源
+        </div>
+        <div class="prefix-input-wrap">
+          <select v-model="defaultPlatformForm" class="input input-sm default-source-select">
+            <option value="">自动（按优先级）</option>
+            <option v-for="opt in defaultSourceOptions" :key="opt.value" :value="opt.value">
+              {{ opt.label }}
+            </option>
+          </select>
+          <button class="btn-primary" :disabled="defaultSourceSaving" @click="saveDefaultSource">
+            {{ defaultSourceSaving ? '保存中…' : '保存' }}
+          </button>
+        </div>
+      </div>
+      <p v-if="defaultSourceMessage" class="spotify-message" :class="`tone-${defaultSourceMessageTone}`">{{ defaultSourceMessage }}</p>
+    </section>
+
     <!-- Spotify (Connect) playback via librespot — requires platform.auth -->
     <section v-if="can('platform.auth')" class="settings-section">
       <h2 class="section-title">Spotify 播放（实验性）</h2>
@@ -552,7 +688,25 @@
     <!-- Audio Quality requires quality -->
     <section v-if="can('quality')" class="settings-section">
       <h2 class="section-title">音质设置</h2>
-      <div class="setting-row">
+      <div v-if="providerOn('jellyfin')" class="setting-row">
+        <div class="setting-label">
+          <Icon icon="mdi:jellyfish" class="setting-icon" />
+          Jellyfin 音质
+        </div>
+        <div class="quality-options">
+          <button
+            v-for="q in jellyfinQualityLevels"
+            :key="q.value"
+            class="quality-btn"
+            :class="{ active: jellyfinQuality === q.value }"
+            @click="setJellyfinQuality(q.value)"
+          >
+            <div class="quality-name">{{ q.label }}</div>
+            <div class="quality-desc">{{ q.desc }}</div>
+          </button>
+        </div>
+      </div>
+      <div v-if="providerOn('netease') || providerOn('qq') || providerOn('kugou') || providerOn('bilibili')" class="setting-row">
         <div class="setting-label">
           <Icon icon="mdi:music-note-eighth" class="setting-icon" />
           音源质量
@@ -984,10 +1138,21 @@ const qualityLevels = [
   { value: 'jymaster', label: '超清母带', desc: '最高质量' },
 ];
 
+// Jellyfin quality tiers (direct = untranscoded original; the rest are
+// server-side transcodes for low-bandwidth Jellyfin links).
+const jellyfinQuality = ref('direct');
+const jellyfinQualityLevels = [
+  { value: 'direct', label: '原始直传', desc: 'Direct（无转码）' },
+  { value: '320', label: '320kbps', desc: '服务器转码' },
+  { value: '192', label: '192kbps', desc: '服务器转码' },
+  { value: '128', label: '128kbps', desc: '服务器转码' },
+];
+
 async function loadQuality() {
   try {
     const res = await axios.get('/api/music/quality');
     currentQuality.value = res.data.netease || 'exhigh';
+    jellyfinQuality.value = res.data.jellyfin || 'direct';
   } catch { /* ignore */ }
 }
 
@@ -998,6 +1163,13 @@ async function setQuality(q: string) {
   } catch { /* ignore */ }
 }
 
+async function setJellyfinQuality(q: string) {
+  jellyfinQuality.value = q;
+  try {
+    await axios.post('/api/music/quality', { quality: q, platform: 'jellyfin' });
+  } catch { /* ignore */ }
+}
+
 // Login mode: 'qr' | 'cookie' | null
 const neteaseLoginMode = ref<'qr' | 'cookie' | null>(null);
 const qqLoginMode = ref<'qr' | 'cookie' | null>(null);
@@ -1009,6 +1181,158 @@ const neteaseAuth = reactive({ loggedIn: false, nickname: '', avatarUrl: '' });
 const qqAuth = reactive({ loggedIn: false, nickname: '', avatarUrl: '' });
 const bilibiliAuth = reactive({ loggedIn: false, nickname: '', avatarUrl: '' });
 const kugouAuth = reactive({ loggedIn: false, nickname: '', avatarUrl: '' });
+const jellyfinAuth = reactive({ loggedIn: false, nickname: '' });
+
+// Server-side source gate (enabledProviders): cards for disabled sources are
+// hidden. Empty until GET /api/bot/settings responds — treat as all-on so a
+// slow load doesn't blank the page.
+const enabledProviders = ref<string[]>([]);
+function providerOn(p: string): boolean {
+  return enabledProviders.value.length === 0 || enabledProviders.value.includes(p);
+}
+
+// --- Default music source (issue #126) ---
+// Chinese labels for the gateable providers, shown in the default-source select.
+const PROVIDER_LABELS: Record<string, string> = {
+  netease: '网易云音乐',
+  qq: 'QQ音乐',
+  kugou: '酷狗音乐',
+  bilibili: '哔哩哔哩',
+  youtube: 'YouTube',
+  jellyfin: 'Jellyfin',
+};
+// Empty string = "auto" (follow the fixed priority order); persisted as null.
+const defaultPlatformForm = ref('');
+const defaultSourceSaving = ref(false);
+const defaultSourceMessage = ref('');
+const defaultSourceMessageTone = ref<'ok' | 'warn'>('ok');
+// Only currently-enabled sources can be picked as the default.
+const defaultSourceOptions = computed(() =>
+  enabledProviders.value
+    .filter((p) => p in PROVIDER_LABELS)
+    .map((p) => ({ value: p, label: PROVIDER_LABELS[p] })),
+);
+
+async function saveDefaultSource() {
+  defaultSourceSaving.value = true;
+  defaultSourceMessage.value = '';
+  try {
+    const res = await axios.post('/api/bot/settings', {
+      defaultPlatform: defaultPlatformForm.value || null,
+    });
+    defaultPlatformForm.value = res.data?.defaultPlatform ?? '';
+    // Push the new default across the app immediately (search bar / play calls
+    // read store.defaultSource, refreshed via GET /api/music/providers).
+    await store.fetchProviders();
+    defaultSourceMessageTone.value = 'ok';
+    defaultSourceMessage.value = '已保存';
+  } catch (err: any) {
+    defaultSourceMessageTone.value = 'warn';
+    defaultSourceMessage.value = err?.response?.status === 403
+      ? '没有权限修改设置（需要 bot.manage）'
+      : '保存失败，请稍后重试';
+  } finally {
+    defaultSourceSaving.value = false;
+  }
+}
+
+// --- Jellyfin connection (admin-configured; password/apiKey are write-only) ---
+const jellyfinForm = reactive({
+  serverUrl: '',
+  authMode: 'userpass' as 'userpass' | 'apikey',
+  username: '',
+  password: '',
+  apiKey: '',
+  userId: '',
+});
+const jellyfinHasPassword = ref(false);
+const jellyfinHasApiKey = ref(false);
+const jellyfinSaving = ref(false);
+const jellyfinTesting = ref(false);
+const jellyfinMessage = ref('');
+const jellyfinMessageTone = ref<'ok' | 'warn'>('ok');
+// Jellyfin is opt-in: its "enabled" bit is membership in enabledProviders
+// (unlike Spotify's dedicated spotify.enabled flag). Only trust the toggle
+// once the real list has loaded, so an early save can't clobber the other
+// providers with the empty placeholder list.
+const jellyfinEnabledForm = ref(false);
+const enabledProvidersLoaded = ref(false);
+
+// Populate from the masked GET /api/bot/settings response — secrets never
+// round-trip, only hasPassword/hasApiKey.
+function applyJellyfinConfig(jf: any) {
+  if (!jf || typeof jf !== 'object') return;
+  jellyfinForm.serverUrl = typeof jf.serverUrl === 'string' ? jf.serverUrl : '';
+  if (jf.authMode === 'userpass' || jf.authMode === 'apikey') jellyfinForm.authMode = jf.authMode;
+  jellyfinForm.username = typeof jf.username === 'string' ? jf.username : '';
+  jellyfinForm.userId = typeof jf.userId === 'string' ? jf.userId : '';
+  jellyfinForm.password = ''; // blank on load; blank on save = unchanged
+  jellyfinForm.apiKey = '';
+  jellyfinHasPassword.value = Boolean(jf.hasPassword);
+  jellyfinHasApiKey.value = Boolean(jf.hasApiKey);
+}
+
+async function saveJellyfin() {
+  jellyfinSaving.value = true;
+  jellyfinMessage.value = '';
+  try {
+    // enabledProviders is a full-replace field, so only send it when the
+    // current list is known — otherwise we'd wipe the other sources.
+    const payload: Record<string, unknown> = { jellyfin: { ...jellyfinForm } };
+    if (enabledProvidersLoaded.value) {
+      const others = enabledProviders.value.filter((p) => p !== 'jellyfin');
+      payload.enabledProviders = jellyfinEnabledForm.value ? [...others, 'jellyfin'] : others;
+    }
+    const res = await axios.post('/api/bot/settings', payload);
+    applyJellyfinConfig(res.data?.jellyfin);
+    if (Array.isArray(res.data?.enabledProviders)) {
+      enabledProviders.value = res.data.enabledProviders;
+      jellyfinEnabledForm.value = res.data.enabledProviders.includes('jellyfin');
+      enabledProvidersLoaded.value = true;
+      // Search bar / home sections / FM cards react without a reload.
+      store.fetchProviders();
+    }
+    // Disabling a source can clear a default that pointed at it (backend
+    // reconciles enabledProviders → defaultPlatform); keep the select in sync.
+    if (res.data && 'defaultPlatform' in res.data) {
+      defaultPlatformForm.value = res.data.defaultPlatform ?? '';
+    }
+    jellyfinMessageTone.value = 'ok';
+    jellyfinMessage.value = '已保存';
+    await checkAuthStatus();
+  } catch (err: any) {
+    jellyfinMessageTone.value = 'warn';
+    jellyfinMessage.value = err?.response?.status === 403
+      ? '没有权限修改设置（需要 bot.manage）'
+      : '保存失败，请稍后重试';
+  } finally {
+    jellyfinSaving.value = false;
+  }
+}
+
+// Round-trips /System/Info with the CURRENT form values (empty secret fields
+// fall back to the stored ones server-side), without touching saved config.
+async function testJellyfin() {
+  jellyfinTesting.value = true;
+  jellyfinMessage.value = '';
+  try {
+    const res = await axios.post('/api/auth/jellyfin/test', { ...jellyfinForm });
+    if (res.data?.ok) {
+      jellyfinMessageTone.value = 'ok';
+      jellyfinMessage.value = `连接成功：${res.data.serverName ?? 'Jellyfin'} ${res.data.version ?? ''}`;
+    } else {
+      jellyfinMessageTone.value = 'warn';
+      jellyfinMessage.value = `连接失败：${res.data?.error ?? '未知错误'}`;
+    }
+  } catch (err: any) {
+    jellyfinMessageTone.value = 'warn';
+    jellyfinMessage.value = err?.response?.status === 403
+      ? '没有权限执行平台登录（需要 platform.auth）'
+      : '测试请求失败，请稍后重试';
+  } finally {
+    jellyfinTesting.value = false;
+  }
+}
 
 // QR state
 interface QrState {
@@ -1039,19 +1363,22 @@ function getQrState(platform: string): QrState {
 }
 
 async function checkAuthStatus() {
-  try {
+  // allSettled: one slow/unconfigured platform must not hide the others'
-    const [nRes, qRes, bRes, kRes] = await Promise.all([
+  // status (jellyfin probes its server with a real HTTP round-trip).
-      axios.get('/api/auth/status', { params: { platform: 'netease' } }),
+  const [nRes, qRes, bRes, kRes, jRes] = await Promise.allSettled([
-      axios.get('/api/auth/status', { params: { platform: 'qq' } }),
+    axios.get('/api/auth/status', { params: { platform: 'netease' } }),
-      axios.get('/api/auth/status', { params: { platform: 'bilibili' } }),
+    axios.get('/api/auth/status', { params: { platform: 'qq' } }),
-      axios.get('/api/auth/status', { params: { platform: 'kugou' } }),
+    axios.get('/api/auth/status', { params: { platform: 'bilibili' } }),
-    ]);
+    axios.get('/api/auth/status', { params: { platform: 'kugou' } }),
-    Object.assign(neteaseAuth, nRes.data);
+    axios.get('/api/auth/status', { params: { platform: 'jellyfin' } }),
-    Object.assign(qqAuth, qRes.data);
+  ]);
-    Object.assign(bilibiliAuth, bRes.data);
+  if (nRes.status === 'fulfilled') Object.assign(neteaseAuth, nRes.value.data);
-    Object.assign(kugouAuth, kRes.data);
+  if (qRes.status === 'fulfilled') Object.assign(qqAuth, qRes.value.data);
-  } catch {
+  if (bRes.status === 'fulfilled') Object.assign(bilibiliAuth, bRes.value.data);
-    // API not ready
+  if (kRes.status === 'fulfilled') Object.assign(kugouAuth, kRes.value.data);
+  if (jRes.status === 'fulfilled') {
+    jellyfinAuth.loggedIn = Boolean(jRes.value.data?.loggedIn);
+    jellyfinAuth.nickname = jRes.value.data?.nickname ?? '';
   }
 }
 
@@ -1253,6 +1580,14 @@ async function loadIdleTimeout() {
     applyGuestModeFromServer(res.data.guestMode);
     applyAdminGroupsFromServer(res.data.adminGroups);
     applySpotifyConfig(res.data.spotify);
+    applyJellyfinConfig(res.data.jellyfin);
+    if (Array.isArray(res.data.enabledProviders)) {
+      enabledProviders.value = res.data.enabledProviders;
+      jellyfinEnabledForm.value = res.data.enabledProviders.includes('jellyfin');
+      enabledProvidersLoaded.value = true;
+    }
+    // null (unset) → "" so the select shows "自动（按优先级）".
+    defaultPlatformForm.value = res.data.defaultPlatform ?? '';
   } catch { /* ignore */ }
 }
 
@@ -1989,6 +2324,10 @@ onUnmounted(() => {
   &.kugou-icon {
     color: var(--brand-kugou);
   }
+
+  &.jellyfin-icon {
+    color: var(--brand-jellyfin);
+  }
 }
 
 .account-name {
@@ -2191,6 +2530,13 @@ onUnmounted(() => {
 
 .input-sm { max-width: 80px; }
 
+// The default-source picker holds full source names ("网易云音乐"), so it needs
+// more room than the 80px .input-sm cap.
+.default-source-select {
+  max-width: none;
+  flex: 0 0 160px;
+}
+
 .textarea {
   width: 100%;
   padding: 10px 14px;

web/src/views/Setup.vue

@@ -60,12 +60,49 @@
     </div>
 
     <div v-if="currentStep === 2" class="step-content">
-      <h2>登录音乐账号 (可选)</h2>
+      <h2>连接 Jellyfin (可选)</h2>
-      <p class="subtitle">登录后可播放 VIP/付费歌曲，跳过则只能播放免费歌曲</p>
+      <p class="subtitle">连接自建 Jellyfin 服务器作为额外音源；保存后自动启用，也可稍后在「设置」中配置</p>
+      <div class="form-group">
+        <label>服务器地址</label>
+        <input v-model="jellyfin.serverUrl" placeholder="https://jellyfin.example.com" class="input" />
+      </div>
+      <div class="form-group">
+        <label>认证方式</label>
+        <select v-model="jellyfin.authMode" class="input">
+          <option value="userpass">账号密码</option>
+          <option value="apikey">API Key</option>
+        </select>
+      </div>
+      <template v-if="jellyfin.authMode === 'userpass'">
+        <div class="form-group">
+          <label>用户名</label>
+          <input v-model="jellyfin.username" placeholder="Jellyfin 用户名" class="input" />
+        </div>
+        <div class="form-group">
+          <label>密码</label>
+          <input v-model="jellyfin.password" type="password" placeholder="Jellyfin 密码" class="input" />
+        </div>
+      </template>
+      <template v-else>
+        <div class="form-group">
+          <label>API Key</label>
+          <input v-model="jellyfin.apiKey" type="password" placeholder="Jellyfin API Key" class="input" />
+        </div>
+        <div class="form-group">
+          <label>用户 ID</label>
+          <input v-model="jellyfin.userId" placeholder="该 Key 使用的用户 ID" class="input" />
+        </div>
+      </template>
+      <p v-if="jellyfinTestMessage" class="test-message" :class="{ ok: jellyfinTestOk }">{{ jellyfinTestMessage }}</p>
       <div class="btn-row">
         <button class="btn-secondary" @click="currentStep = 1">上一步</button>
         <button class="btn-secondary" @click="currentStep = 3">跳过</button>
-        <button class="btn-primary" @click="currentStep = 3">完成登录</button>
+        <button class="btn-secondary" :disabled="jellyfinTesting" @click="testJellyfin">
+          {{ jellyfinTesting ? '测试中…' : '测试连接' }}
+        </button>
+        <button class="btn-primary" :disabled="jellyfinSaving" @click="saveJellyfinAndNext">
+          {{ jellyfinSaving ? '保存中…' : '保存并继续' }}
+        </button>
       </div>
     </div>
 
@@ -78,11 +115,11 @@
 </template>
 
 <script setup lang="ts">
-import { ref } from 'vue';
+import { ref, reactive } from 'vue';
 import axios from 'axios';
 
 const currentStep = ref(0);
-const stepLabels = ['欢迎', 'TS 服务器', '音乐账号', '完成'];
+const stepLabels = ['欢迎', 'TS 服务器', 'Jellyfin', '完成'];
 
 const adminPassword = ref('');
 const locale = ref('zh');
@@ -93,6 +130,21 @@ const nickname = ref('MusicBot');
 const defaultChannel = ref('');
 const channelId = ref('');
 
+// Jellyfin — optional self-hosted music source. Skipping leaves it
+// configurable later in Settings; saving here also enables it.
+const jellyfin = reactive({
+  serverUrl: '',
+  authMode: 'userpass' as 'userpass' | 'apikey',
+  username: '',
+  password: '',
+  apiKey: '',
+  userId: '',
+});
+const jellyfinTesting = ref(false);
+const jellyfinSaving = ref(false);
+const jellyfinTestOk = ref(false);
+const jellyfinTestMessage = ref('');
+
 async function createBotAndNext() {
   try {
     await axios.post('/api/bot', {
@@ -109,6 +161,48 @@ async function createBotAndNext() {
     alert('Failed to create bot: ' + (err as Error).message);
   }
 }
+
+async function testJellyfin() {
+  jellyfinTesting.value = true;
+  jellyfinTestMessage.value = '';
+  try {
+    const res = await axios.post('/api/auth/jellyfin/test', { ...jellyfin });
+    jellyfinTestOk.value = Boolean(res.data?.ok);
+    jellyfinTestMessage.value = res.data?.ok
+      ? `连接成功：${res.data.serverName ?? 'Jellyfin'} ${res.data.version ?? ''}`
+      : `连接失败：${res.data?.error ?? '未知错误'}`;
+  } catch {
+    jellyfinTestOk.value = false;
+    jellyfinTestMessage.value = '测试请求失败，请检查地址后重试';
+  } finally {
+    jellyfinTesting.value = false;
+  }
+}
+
+async function saveJellyfinAndNext() {
+  jellyfinSaving.value = true;
+  try {
+    // Jellyfin is opt-in (not in the default enabledProviders), so completing
+    // this step also enables the source — a configured-but-dark Jellyfin would
+    // be baffling. enabledProviders is full-replace: fetch the current list
+    // and append. Only do this when a server URL was actually entered.
+    const payload: Record<string, unknown> = { jellyfin: { ...jellyfin } };
+    if (jellyfin.serverUrl.trim()) {
+      const cur = await axios.get('/api/bot/settings');
+      const ep: unknown = cur.data?.enabledProviders;
+      if (Array.isArray(ep) && !ep.includes('jellyfin')) {
+        payload.enabledProviders = [...ep, 'jellyfin'];
+      }
+    }
+    await axios.post('/api/bot/settings', payload);
+    currentStep.value = 3;
+  } catch {
+    jellyfinTestOk.value = false;
+    jellyfinTestMessage.value = '保存失败，请稍后在「设置」中重试';
+  } finally {
+    jellyfinSaving.value = false;
+  }
+}
 </script>
 
 <style lang="scss" scoped>
@@ -232,6 +326,14 @@ async function createBotAndNext() {
   margin-top: 32px;
 }
 
+.test-message {
+  font-size: 13px;
+  color: #e67e22;
+  margin-top: -6px;
+
+  &.ok { color: var(--color-online, #22c55e); }
+}
+
 .done-step {
   text-align: center;
   padding-top: 60px;